Template-Type: ReDIF-Article 1.0 Author-Name: Tienan Zhang Author-X-Name-First: Tienan Author-X-Name-Last: Zhang Title: A QoS-enhanced data replication service in virtualised cloud environments Abstract: In recent cloud systems, data-intensive applications have been widely deployed for solving non-trivial problems, which often involve large amount of dataset. As a standard service for offering data availability and reliability, data replication service plays an important role and is proven to be effective in many real-world cloud environments. However, many existing replication services are designed for improving the system-oriented metrics instead of user-oriented metrics. In this paper, we first formulate the quality-of-service (QoS) constrained replication placing problem in different manners and then a novel replication service is proposed which uses multi-objective technique to solve the replica placement problem via a time-efficient approach. A set of experiments are conducted to evaluate the effectiveness and efficiency of the proposed service and the results indicate it can significantly reduce the average response time metric comparing with other existing replication services and therefore improve the QoS for user applications. In addition, it also exhibits a good robustness when the cloud storage system is facing intensive replication workloads. Journal: Int. J. of Networking and Virtual Organisations Pages: 1-16 Issue: 1 Volume: 22 Year: 2020 Keywords: data replication; quality-of-service; QoS; response time; cloud computing. File-URL: http://www.inderscience.com/link.php?id=104967 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:1:p:1-16 Template-Type: ReDIF-Article 1.0 Author-Name: R. Suma Author-X-Name-First: R. Author-X-Name-Last: Suma Author-Name: B.G. Premasudha Author-X-Name-First: B.G. Author-X-Name-Last: Premasudha Author-Name: V. Ravi Ram Author-X-Name-First: V. Ravi Author-X-Name-Last: Ram Title: A novel machine learning-based attacker detection system to secure location aided routing in MANETs Abstract: The proposed work deals with the improvisation of the performance of location-based routing in mobile ad hoc network (MANET). A machine learning-based attacker detection (MLAD) algorithm that uses multipath routing is proposed to facilitate efficient routing even in the presence of attackers. The proposed algorithm adopts the location aided routing (LAR) to optimise the search process and to reduce the search area for new routes in MANETs. Learning automata (LA) is implemented to optimise the path selection and to reduce overhead in the network. Extended identity-base cryptography (EIBC) is used for efficient key management in providing system security. The proposed system implements privacy preserving communication system (PPCS) for maintaining privacy in end-to-end communication. This method decouples the location information from the node's identifier and abstracts the communication happening among nodes. The simulation results of the proposed method reveal its reliability and strength in securing LAR in MANETs. Journal: Int. J. of Networking and Virtual Organisations Pages: 17-41 Issue: 1 Volume: 22 Year: 2020 Keywords: mobile ad hoc network; MANET; learning automata; optimisation; routing; fault tolerance; identity-based cryptography; key management; privacy preservation; attacker detection; location aided routing. File-URL: http://www.inderscience.com/link.php?id=104968 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:1:p:17-41 Template-Type: ReDIF-Article 1.0 Author-Name: J. Reshma Author-X-Name-First: J. Author-X-Name-Last: Reshma Author-Name: Satish Kumar T Author-X-Name-First: Satish Kumar Author-X-Name-Last: T Author-Name: R. Krishna Prasad Author-X-Name-First: R. Krishna Author-X-Name-Last: Prasad Title: QoS integrated energy aware routing for wireless sensor networks Abstract: Quality of service (QoS) in wireless sensor networks (WSNs) has got limited attention due to multiple bottlenecks such as limited bandwidth and energy storage. Until now, most of the focus has been to develop energy efficient routing schemes for WSN. It is important to provide effective QoS mechanism along with energy efficient data transmission. In this work, QoS mechanism is incorporated inside energy aware routing protocol proposed in Shah and Rabaey (2002). This new integrated protocol achieves dual goal of energy efficient data transmission and effective QoS functionalities. Empirical results are demonstrated on NS3 simulator. The proposed approach is compared against existing state of the art technique. The proposed approach outperforms the existing state of the art technique in prolonging the network lifetime. Journal: Int. J. of Networking and Virtual Organisations Pages: 42-54 Issue: 1 Volume: 22 Year: 2020 Keywords: quality of service; QoS; energy efficiency; energy aware routing. File-URL: http://www.inderscience.com/link.php?id=104976 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:1:p:42-54 Template-Type: ReDIF-Article 1.0 Author-Name: Antti Ylä-Kujala Author-X-Name-First: Antti Author-X-Name-Last: Ylä-Kujala Author-Name: Salla Marttonen-Arola Author-X-Name-First: Salla Author-X-Name-Last: Marttonen-Arola Author-Name: Tiina Sinkkonen Author-X-Name-First: Tiina Author-X-Name-Last: Sinkkonen Author-Name: Timo Kärri Author-X-Name-First: Timo Author-X-Name-Last: Kärri Title: Implementation of inter-organisational mediums: synthesising framework as a design exemplar Abstract: The field of management research has an utilisation problem. A considerable avenue in which the translation from theory to practice has been only partial is the management control of inter-organisational relationships. In this particular stream of management (accounting) research, open-book accounting (OBA) is a key concept. Based on the OBA literature, our ambition is to develop an implementation framework for inter-organisational mediums (IFFIM). The first part of the framework, IFFIM_1: the relational view is concerned with the multidimensional nature of inter-organisational relationships by illustrating relational complexities through the OBA dimensions. The second part of the framework, IFFIM_2: the process view is an outlook to the stepwise implementation process, where the factors that influence OBA implementation have been integrated to the phases of the so-called enterprise system experience cycle. Unlike most contemporary research, our work is based on the idea of 'design science', the aim of which is to develop general knowledge to support the design of solutions to field problems. IFFIM is a design exemplar to practitioners, i.e., a guideline to follow in the design of interventions. Journal: Int. J. of Networking and Virtual Organisations Pages: 55-74 Issue: 1 Volume: 22 Year: 2020 Keywords: inter-organisational relationships; inter-organisational mediums; open-book accounting; OBA; implementation framework; implementation; framework; design science; design exemplar. File-URL: http://www.inderscience.com/link.php?id=104977 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:1:p:55-74 Template-Type: ReDIF-Article 1.0 Author-Name: Amine Baina Author-X-Name-First: Amine Author-X-Name-Last: Baina Author-Name: Khalid Benali Author-X-Name-First: Khalid Author-X-Name-Last: Benali Author-Name: Mostafa Bellafkih Author-X-Name-First: Mostafa Author-X-Name-Last: Bellafkih Author-Name: Nawal Ait Aali Author-X-Name-First: Nawal Ait Author-X-Name-Last: Aali Title: Unified enterprise modelling language-based interoperability for collaborative access control framework in critical infrastructures Abstract: Due to physical and logical vulnerabilities, a critical infrastructure (CI) can encounter failures of various degrees of severity, and since there are many interdependencies between CIs, simple failures can have dramatic consequences on the whole infrastructure. In this paper, we mainly focus on malicious threats that might affect the communication and information systems (the critical information infrastructure, or CII) dedicated to critical infrastructures. We define a new collaborative access control framework called PolyOrBAC, to address the security problems that are specific of CIIs. This approach offers each organisation taking part in the CII the capacity of collaborating with the other ones, while maintaining a control on its resources and on its internal security policy. The approach is demonstrated on a practical scenario, based on real emergency actions in an electric power grid infrastructure. Journal: Int. J. of Networking and Virtual Organisations Pages: 75-100 Issue: 1 Volume: 22 Year: 2020 Keywords: critical infrastructure; critical information infrastructure; CII; security; access control policies and models; collaboration; interoperability; virtual organisations; collaborative access control; electrical grid; unified enterprise modelling language; UEML. File-URL: http://www.inderscience.com/link.php?id=104979 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:1:p:75-100 Template-Type: ReDIF-Article 1.0 Author-Name: Peng Xiao Author-X-Name-First: Peng Author-X-Name-Last: Xiao Title: An efficiency virtual resource auction mechanism based on reserve-price strategy in cloud environments Abstract: In economic-based cloud models, resource pricing mechanism plays a key role to regulate the supply and demand for resources, provides an incentive for providers, and motivates the users to trade-off between deadline, budget, and the required level of quality of service. In this paper, we formulate the problem of resource auction as a distributed constrained programming problem; then we propose an effective and efficient auction algorithm, which use reserve-price strategy to guarantee that users pay at least a given amount determined by cloud providers. In this way, we can significantly improve the efficiency of auction process as well as provide sufficient incentive for cloud providers to share their spare resources. To evaluate the proposed auction algorithm, extensive experiments are conducted in a real-world cloud platform, and the results indicate that it can significantly increase the provider revenue as well as improve the quality-of-service (QoS) satisfactory. Journal: Int. J. of Networking and Virtual Organisations Pages: 101-114 Issue: 2 Volume: 22 Year: 2020 Keywords: cloud computing; resource market; auction model; resource price. File-URL: http://www.inderscience.com/link.php?id=105510 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:2:p:101-114 Template-Type: ReDIF-Article 1.0 Author-Name: Hong He Author-X-Name-First: Hong Author-X-Name-Last: He Title: A reliable peer-to-peer storage framework based on virtual peers model Abstract: Peer-to-peer (P2P) networks have become popular applications due to their ease of communication and resource sharing patterns in unfixed network infrastructures. However, typical P2P systems often suffer from the problem of unreliable network transferring and unstable availability of data files. In this paper, we propose a novel P2P-based storage framework, which introduces a set of virtual peers to improve the reliability of networking transferring and storage by using the networking coding technology. Also, we present a detailed theoretical analysis on storage performance and management cost, which indicates that the proposed framework is capable of achieving better tradeoffs between reliability and efficiency. To evaluate the effectiveness of the proposed framework, extensive experiments are conducted in a realworld P2P storage platform, and the experimental results show that our P2P storage framework outperforms the existing solutions in terms of many performance metrics, including data availability, resource utilisation, and communication cost. Journal: Int. J. of Networking and Virtual Organisations Pages: 129-146 Issue: 2 Volume: 22 Year: 2020 Keywords: distributed storage; virtual peer; data availability; communication cost. File-URL: http://www.inderscience.com/link.php?id=105513 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:2:p:129-146 Template-Type: ReDIF-Article 1.0 Author-Name: Changsong Liu Author-X-Name-First: Changsong Author-X-Name-Last: Liu Title: A novel replica placement algorithm for minimising communication cost in distributed storage platform Abstract: In large-scale distributed systems, replication service has been playing a critical role to improve the availability and reliability of user data. Conventionally, the existing replication services mainly concentrate on how many replicas are needed to maintain desirable availability and reliability rather than how to place replicas on the most suitable storage nodes. As a result, the communication-related costs when accessing data are significantly increased, which in turn degrades the execution performance of user applications. In this paper, we propose a novel replica placement algorithm which is designed to minimise the communication cost when accessing or managing replicas in a large-scale storage platform. In the proposed algorithm, the replica placement problem is formulised a classical multi-knapsack problem, and two heuristic metrics are introduced to obtain the sub-optimal solution of this problem. A lot of experiments are conducted to investigate the performance of the proposed algorithm. The experimental results indicate that our replica placement algorithm outperforms many existing approaches in terms of different performance metrics. In addition, the proposed algorithm can also significantly improve the execution efficiency for data-intensive applications, which are very common in nowadays large-scale distributed systems, such as grid and cloud. Journal: Int. J. of Networking and Virtual Organisations Pages: 147-161 Issue: 2 Volume: 22 Year: 2020 Keywords: data replication; replica service; distributed storage; cloud computing. File-URL: http://www.inderscience.com/link.php?id=105514 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:2:p:147-161 Template-Type: ReDIF-Article 1.0 Author-Name: Yuan Tian Author-X-Name-First: Yuan Author-X-Name-Last: Tian Title: A novel virtual resource pricing policy based on game model in federated clouds Abstract: In recent years, more and more cloud providers are unified together to form a federated cloud market, where a suitable pricing strategy plays a key role to help they attracting more users. However, many existing pricing policies can not deal with the competition between different cloud providers. In this study, we take efforts on the resource pricing policy in federated cloud market. To obtain an optimal pricing scheme among multiple IaaS providers (ISPs), we firstly use the learning curve model to model the production supply behaviours of ISPs, and then we use a standard Markov decision process to describe the pricing game model and present an efficient algorithm to solve this game model in a distributed manner. The proposed pricing model has been fully investigated and evaluated in a real-world federated cloud platform, and the results indicate that it can significantly improve the profits of ISPs comparing to several existing pricing mechanisms. Journal: Int. J. of Networking and Virtual Organisations Pages: 115-128 Issue: 2 Volume: 22 Year: 2020 Keywords: cloud computing; virtual machine; pricing scheme; federated market. File-URL: http://www.inderscience.com/link.php?id=105515 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:2:p:115-128 Template-Type: ReDIF-Article 1.0 Author-Name: Jinnan Wu Author-X-Name-First: Jinnan Author-X-Name-Last: Wu Author-Name: Nannan Wang Author-X-Name-First: Nannan Author-X-Name-Last: Wang Author-Name: Wenjuan Mei Author-X-Name-First: Wenjuan Author-X-Name-Last: Mei Author-Name: Lin Liu Author-X-Name-First: Lin Author-X-Name-Last: Liu Title: Technology-induced job anxiety during non-work time: examining conditional effect of techno-invasion on job anxiety Abstract: Although work-related use of information and communication technologies (ICTs) during non-work time leads to techno-invasion, little is known whether employee techno-invasion causes job anxiety. Also, it remains unclear 'when' techno-invasion is particularly or less correlated to job anxiety. Based on the stress, appraisal and coping theory and the theory of conservation of resources, we examined whether techno-invasion increases employee job anxiety, and investigated whether computer self-efficacy and perceived organisational support can buffer this effect. The results show that techno-invasion positively predicts job anxiety, while both employee computer self-efficacy and perceived organisational support can significantly weaken this association. More importantly, we find a larger moderating effect of computer self-efficacy when employee perceived a low level of perceived organisational support. Journal: Int. J. of Networking and Virtual Organisations Pages: 162-182 Issue: 2 Volume: 22 Year: 2020 Keywords: techno-invasion; job anxiety; computer self-efficacy; CSE; perceived organisational support; POS; transactional stress theory; conservation of resources; CORs; technostress; work-life balance; moderating effect; China. File-URL: http://www.inderscience.com/link.php?id=105520 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:2:p:162-182 Template-Type: ReDIF-Article 1.0 Author-Name: Tienan Zhang Author-X-Name-First: Tienan Author-X-Name-Last: Zhang Title: A fairness-enhanced resource trading system in federated cloud environments Abstract: In federated cloud system, resource provisioning and allocation across multiple providers become a challenging issue. However, most of existing studies focused on how to improve resource utility or resource revenue, while ignores the efficiency and fairness of the resource market. In this study, we first introduce the definitions of efficient market and fairness criterion based on the classical economic theory; then, we design a resource trading protocol which is capable of offering topology-wide efficiency and fairness under certain payment rules in resource market. Theoretical analysis indicates that the proposed resource trading model is beneficial for pushing resources to resource providers who value them more, which means that resource providers can increase social welfare by repeatedly performing ration deals. To evaluate the effectiveness of the proposed trading model, experiments are conducted in a real-world cloud platform. The results show that it can significantly improve the resource revenues for providers and make better task mapping decisions. Journal: Int. J. of Networking and Virtual Organisations Pages: 183-198 Issue: 2 Volume: 22 Year: 2020 Keywords: cloud computing; resource trading model; multi-agent model; virtual machine. File-URL: http://www.inderscience.com/link.php?id=105522 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:2:p:183-198 Template-Type: ReDIF-Article 1.0 Author-Name: Navin Sewberath Misser Author-X-Name-First: Navin Sewberath Author-X-Name-Last: Misser Author-Name: Joris Jaspers Author-X-Name-First: Joris Author-X-Name-Last: Jaspers Author-Name: Bas Van Zaane Author-X-Name-First: Bas Van Author-X-Name-Last: Zaane Author-Name: Hein Gooszen Author-X-Name-First: Hein Author-X-Name-Last: Gooszen Author-Name: Johan Versendaal Author-X-Name-First: Johan Author-X-Name-Last: Versendaal Title: A protocol for the implementation of new technology in a highly complex hospital environment: the operating room Abstract: Medical equipment is implemented in highly complex hospital environments, such as operating rooms, in hospitals around the world. In operating rooms (ORs), technological equipment is used for surgical activities and activities in support of surgeries. The implementation of government policies in hospitals has resulted in varying implementation activities for (medical) equipment. These result in varying lead times and success rates. An integral and holistic protocol for implementation does not yet exist. In this study, we introduce a protocol for the implementation of (medical) equipment in ORs that consists of implementation factors and implementation activities. Factors and activities are based on data from a systematic literature review and an explorative survey among surgical support staff on factors for the successful implementation of technological and (medical) equipment in ORs. The protocol consists of five factors and related implementation activities: the establishment of a project plan, organisational preparation, technological preparation, maintenance, and training. Journal: Int. J. of Networking and Virtual Organisations Pages: 199-217 Issue: 2 Volume: 22 Year: 2020 Keywords: implementation; protocol; medical technology; (medical) equipment; healthcare; hospital; operating room; operating theatre; integration; scrub nurse; circulating nurse. File-URL: http://www.inderscience.com/link.php?id=105543 File-Format: text/html File-Restriction: Open Access Handle: RePEc:ids:ijnvor:v:22:y:2020:i:2:p:199-217 Template-Type: ReDIF-Article 1.0 Author-Name: Georg Tilch Author-X-Name-First: Georg Author-X-Name-Last: Tilch Author-Name: Tatiana Ermakova Author-X-Name-First: Tatiana Author-X-Name-Last: Ermakova Author-Name: Benjamin Fabian Author-X-Name-First: Benjamin Author-X-Name-Last: Fabian Title: A multilayer graph model of the internet topology Abstract: The application of internet maps for developing more effective routing algorithms, security mechanisms and resilience management for both companies and internet service providers can be advanced through their more detailed structural decomposition. This article carefully integrates traceroute datasets from various large-scale measurement campaigns such as iPlane, CAIDA, Carna, DIMES, RIPE Atlas and RIPE IPv6L into internet graphs of a previously unknown large and thus solid scale. It further works with different well-established abstraction levels such as the IP interface, router, point of presence (PoP), autonomous system (AS) and internet service provider (ISP). Finally, by employing a broad diversity of graph measures, this study creates an exhaustive snapshot of the global internet topology. This work creates a baseline for future internet research. Repeated measurements and automated data integration could enable a better understanding of the internet dynamics. Journal: Int. J. of Networking and Virtual Organisations Pages: 219-245 Issue: 3 Volume: 22 Year: 2020 Keywords: internet; internet topology; computer networks; complex networks; graph analysis. File-URL: http://www.inderscience.com/link.php?id=106488 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:3:p:219-245 Template-Type: ReDIF-Article 1.0 Author-Name: Adriano Augusto Costa Carnauba Author-X-Name-First: Adriano Augusto Costa Author-X-Name-Last: Carnauba Author-Name: João Maurício Gama Boaventura Author-X-Name-First: João Maurício Gama Author-X-Name-Last: Boaventura Author-Name: Cristina Espinheira Costa Pereira Author-X-Name-First: Cristina Espinheira Costa Author-X-Name-Last: Pereira Author-Name: Ana Cláudia Azevedo Author-X-Name-First: Ana Cláudia Author-X-Name-Last: Azevedo Author-Name: Emanuela Todeva Author-X-Name-First: Emanuela Author-X-Name-Last: Todeva Title: Formal and relational mechanisms of network governance and their relationship with trust: substitutes or complementary in Brazilian real estate transactions? Abstract: The objective of this study was to investigate whether formal and relational mechanisms of network governance act as substitutes or are complementary in their relationship with trust in the intermediation activity of real estate transactions. We conducted a quantitative study to test the hypotheses. We collected data via a survey and the context was Brazilian real estate business networks. We used a non-parametric approach to investigate the associations among the key variables indicated in the theory. The results confirm the hypothesis that formal and relational mechanisms of network governance act as complementary and reject the possibility of substitution between them. Both mechanisms are important to build trust-based relationships between actors and formal governance mechanisms have a significant positive relationship with inter-organisational trust, while relational mechanisms are positively associated with interpersonal trust. This study not only contributes to the discussion on governance mechanisms and their relationship with trust, but also broadens this debate by considering trust at different levels and in more complex structures where these relationships are still barely explored, such as is the case of business networks. Journal: Int. J. of Networking and Virtual Organisations Pages: 246-271 Issue: 3 Volume: 22 Year: 2020 Keywords: network; mechanisms of governance; trust; inter-organisational relationships; real estate network; Brazil. File-URL: http://www.inderscience.com/link.php?id=106493 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:3:p:246-271 Template-Type: ReDIF-Article 1.0 Author-Name: Heiko Duin Author-X-Name-First: Heiko Author-X-Name-Last: Duin Author-Name: Klaus-Dieter Thoben Author-X-Name-First: Klaus-Dieter Author-X-Name-Last: Thoben Title: Causal cross-impact analysis for identification and assessment of strategic options for industrial clusters Abstract: Strategic planning for industrial clusters differs compared to strategic planning for corporations. Industrial clusters are characterised by the existence of non-focal organisational networks within the cluster representing different roles like manufacturing companies, suppliers, research institutions and regional development agencies. This paper shows how strategic planning can be carried out with the help of cross-impact analysis in networked structures found in such clusters using a German aviation cluster as an example. For this purpose, a planning team of ten persons was put together, which unifies the different perspectives of the different types of partners. Using an adapted strategic planning process, the team developed, analysed and used a causal cross-impact model to derive strategic options for the cluster. These options were further developed into sets of measures and integrated into the cross-impact model. This approach allowed the review of the effectiveness of the various strategic options including the assessment of their robustness. Journal: Int. J. of Networking and Virtual Organisations Pages: 272-300 Issue: 3 Volume: 22 Year: 2020 Keywords: industrial cluster; aviation cluster; causal cross-impact analysis; enterprise networks; networked organisations; strategic planning. File-URL: http://www.inderscience.com/link.php?id=106496 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:3:p:272-300 Template-Type: ReDIF-Article 1.0 Author-Name: Demokaan Demirel Author-X-Name-First: Demokaan Author-X-Name-Last: Demirel Title: How can the coordination of the processes be achieved in virtual teams?: Implications for virtual organisations Abstract: Improvements in today's information society have also changed the working styles of the organisations. Organisations are more focused on services and operate in a virtual environment. The origins of virtual teams are knowledge and expertise, and they also depend on the basic abilities of a virtual team's members. The aim of this study is to determine how to achieve coordination in processes such as communication, trust, technology usage, leadership, and differences while performing the activities of virtual teams. The main problem of the work is which process and/or processes affect the functioning of the virtual teams and which play a more important role in team effectiveness. The study is based on qualitative methodological evaluations and has a rich literature references about the subject. Finally, it is recommended that processes be supported with result-oriented practices and that team members should be interdependent with a strong communication network. Journal: Int. J. of Networking and Virtual Organisations Pages: 301-322 Issue: 3 Volume: 22 Year: 2020 Keywords: virtual organisation; virtual team; trust; communication; leadership; technology. File-URL: http://www.inderscience.com/link.php?id=106497 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:3:p:301-322 Template-Type: ReDIF-Article 1.0 Author-Name: Surekha Lanka Author-X-Name-First: Surekha Author-X-Name-Last: Lanka Author-Name: Ilogu Ikechukwu Author-X-Name-First: Ilogu Author-X-Name-Last: Ikechukwu Title: An effective performance of dynamic and ad-hoc on-demand routing protocols for mobile ad-hoc networks under NS environment Abstract: Mobile ad hoc network (MANET) is a popular emerging wireless network and plays vital role to maintain the routing demands in wireless network. AODV and DYMO are on-demand routing protocols that was designed to meet various needs of MANET such as security, mobility, flexibility etc. IETF listed on-demand routing protocols in a varying speed of nodes, mobility, and performance metrics. In this paper, we discussed behaviour of the two main on-demand routing protocols in network simulation environment, while sending packets from source to destination under free space and two ray propagation models by varying packet rate. We analysed the performance metrics of MANET in the following heading; average jitter, average end-to-end delay, packet delivery ratio, and throughput are compared with percentage of nodes packet drops. Journal: Int. J. of Networking and Virtual Organisations Pages: 325-333 Issue: 4 Volume: 22 Year: 2020 Keywords: on demand routing protocols; ad-hoc on-demand distance vector; AODV; dynamic MANET on-demand protocol; DYMO; NS2; ad hoc; route discovery; route request; route error; two ray propagation model; constant bit rate; setdest; performance metrics. File-URL: http://www.inderscience.com/link.php?id=107558 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:4:p:325-333 Template-Type: ReDIF-Article 1.0 Author-Name: S. Velliangiri Author-X-Name-First: S. Author-X-Name-Last: Velliangiri Author-Name: R. Sekar Author-X-Name-First: R. Author-X-Name-Last: Sekar Author-Name: P. Anbhazhagan Author-X-Name-First: P. Author-X-Name-Last: Anbhazhagan Title: Using MLPA for smart mushroom farm monitoring system based on IoT Abstract: Mushroom has turned out to be a standout amongst the most fundamental consumable items in our everyday life. To increase mushroom production and to reduce manual work smart mushroom monitoring has been proposed with the assistance of internet of things (IoT) and machine learning (ML) algorithms called machine learning with prediction analysis (MLPA) technique. In this proposed MLPA technique, sensors mounted in the mushroom farm collect moisture, temperature and humidity data from soil and air, which is used to predict disease for mushroom from past history data. Based on the sensor value and prediction by ML algorithm, the farmer can predict weekly irrigation plan. The sensors are connected to IoT device, which sends collected data for analysis using ML algorithms. Three main tasks of ML algorithms are regression, classification and clustering. The main objective of our research work is to compress sensor data using kalman filter and classify using decision tree algorithm. Our proposed MLPA technique shows better accuracy than any other normal ML algorithms. Journal: Int. J. of Networking and Virtual Organisations Pages: 334-346 Issue: 4 Volume: 22 Year: 2020 Keywords: internet of things; IoT; machine learning; prediction analysis; mushroom monitoring. File-URL: http://www.inderscience.com/link.php?id=107559 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:4:p:334-346 Template-Type: ReDIF-Article 1.0 Author-Name: V. Ravi Ram Author-X-Name-First: V. Ravi Author-X-Name-Last: Ram Author-Name: B.G. Premasudha Author-X-Name-First: B.G. Author-X-Name-Last: Premasudha Author-Name: R. Suma Author-X-Name-First: R. Author-X-Name-Last: Suma Title: SCM: secured communication model for urban VANET applications Abstract: The primary concern of any vehicular ad hoc network (VANET) application is to offer safety and infotainment related services to commuters in a dynamic and reliable way. The characteristics of both VANET environment and the participating vehicles raise several challenges for the application development. The success of any application depends on the strength of the underlying communication model. Thus scalable, secure and robust communication models that work well with different traffic conditions and varying mobility speeds are required. We have proposed a secured communication model (SCM) for VANETs to facilitate dedicated short range communication (DSRC). The model was designed based on the specifications of IEEE 802.11p standard and the security component was offered through IDbased encryption and signature schemes. Several urban communication scenarios with different vehicle densities were created in EXata emulator. These scenarios were emulated on the proposed SCM using four routing protocols- AODV, Bellman Ford, OLSR and LAR. At higher vehicle densities the proposed model had resulted in good throughput with an acceptable delay. Out of the four routing protocols, location aided routing (LAR) protocol was found efficient on the proposed SCM. Journal: Int. J. of Networking and Virtual Organisations Pages: 347-365 Issue: 4 Volume: 22 Year: 2020 Keywords: vehicular ad hoc network; VANET; security; routing; communication model; evaluation; urban applications; EXata; simulation; emulation; performance analysis. File-URL: http://www.inderscience.com/link.php?id=107560 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:4:p:347-365 Template-Type: ReDIF-Article 1.0 Author-Name: C. Arun Author-X-Name-First: C. Author-X-Name-Last: Arun Author-Name: K. Prabu Author-X-Name-First: K. Author-X-Name-Last: Prabu Title: A multi-objective EBCO-TS algorithm for efficient task scheduling in mobile cloud computing Abstract: Cloud computing proposals a novel service to the users to permitting for consume the distant resources due to some faults faced in smart devices. This causes to the emergence of the newest computing model known as mobile cloud computing. It supports to the user that the mobile devices not require to execute the application in user device as a replacement of some jobs will be execute in distant cloud/cloudlet is named as offloading jobs which is the nearby to the device. At the similar time job scheduling is more critical commonly at both the mobile devices and the mobile cloud. To solving the task scheduling problem, we propose an EBCO-TS algorithm for priority based task scheduling with load balancing model. The proposed EBCO-TS consume the power only 85% compared to the existing methods and it shows better load balancing when the number of request increases in the cloudlet. Journal: Int. J. of Networking and Virtual Organisations Pages: 366-386 Issue: 4 Volume: 22 Year: 2020 Keywords: mobile cloud computing; MCC; cloud computing; priority-based task scheduling; task scheduling; EBCO-TS; load balancing. File-URL: http://www.inderscience.com/link.php?id=107570 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:4:p:366-386 Template-Type: ReDIF-Article 1.0 Author-Name: Saifeng Zeng Author-X-Name-First: Saifeng Author-X-Name-Last: Zeng Title: Virtual resource auction based on Bayesian incentive strategy in large-scale clouds Abstract: In cloud platforms, resource pricing service plays a key role to regulate the behaviours of both resource providers and consumers. However, the increasing diversity of user quality-of-service (QoS) requirements makes existing pricing models difficult to be implemented in an efficient manner. In this paper, we design an auction model which is not only useful for cloud clients but also can significantly increase the resource revenue for providers. To support QoS-aware resource pricing, we normalise QoS parameters-based user's scores and use the Bayesian incentive strategy to regulate resource auctions. The key advantage of this auction model is that it supports multi-attributes auction and budget-balancing among bidders. Extensive experiments are conducted in a campus-based cloud, and the results are compared with other existing pricing models. The results indicate that the proposed auction model can significantly improve the resource revenue of cloud providers as well as maintain desirable QoS level for cloud clients. Journal: Int. J. of Networking and Virtual Organisations Pages: 387-401 Issue: 4 Volume: 22 Year: 2020 Keywords: cloud computing; virtual resource; auction model; Bayesian incentive strategy. File-URL: http://www.inderscience.com/link.php?id=107573 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:4:p:387-401 Template-Type: ReDIF-Article 1.0 Author-Name: Kyungwoon Cho Author-X-Name-First: Kyungwoon Author-X-Name-Last: Cho Author-Name: Hyokyung Bahn Author-X-Name-First: Hyokyung Author-X-Name-Last: Bahn Title: An efficient cache management algorithm for streaming workloads Abstract: In this paper, we present a novel cache management algorithm for real-world streaming workloads. Streaming workloads are believed to exhibit very large and sequential access patterns, which has been the main consideration in designing media caching algorithms. However, legacy caching algorithms do not fully utilise fine-grained access patterns of streaming workloads and also tend to ignore human interactivity. In this paper, we present the least expectation first (LEF) algorithm, which manages a large number of block caches as two-level grouping. Specifically, we select caching and eviction targets based on the expected gain of the cached data blocks, thereby improving the cache hit ratio significantly. Experimental results show that the proposed algorithm performs better than well-known interval caching and LRU algorithms with respect to the hit ratio and the I/O bandwidth. Journal: Int. J. of Networking and Virtual Organisations Pages: 402-414 Issue: 4 Volume: 22 Year: 2020 Keywords: caching algorithm; interval caching; LRU algorithm; streaming workload; sequential access; buffer caching; I/O bandwidth; cache hit ratio. File-URL: http://www.inderscience.com/link.php?id=107574 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:4:p:402-414 Template-Type: ReDIF-Article 1.0 Author-Name: R.M. Gomathi Author-X-Name-First: R.M. Author-X-Name-Last: Gomathi Author-Name: J. Martin Leo Manickam Author-X-Name-First: J. Martin Leo Author-X-Name-Last: Manickam Author-Name: A. Sivasangari Author-X-Name-First: A. Author-X-Name-Last: Sivasangari Author-Name: P. Ajitha Author-X-Name-First: P. Author-X-Name-Last: Ajitha Title: Energy efficient dynamic clustering routing protocol in underwater wireless sensor networks Abstract: In underwater wireless sensor networks (UWSN) energy control is a vital issue. Few UWSN applications include both dynamic and static sensor nodes within the same networks. The mobility of dynamic nodes can lead to performance related issues as these nodes include small memory, battery power, short range communication, and low speed calculation ability. Hence, an energy efficient routing protocol is important to direct the incoming packet. Dynamic cluster technology utilising cluster based network arrangement is mainly learned in routing protocol. In this paper, proposed a unique routing algorithm called as energy efficient and mobility-based dynamic cluster head selection routing protocol (EE-MDCHSRP) is suggested for UWSN for successful dynamic cluster head choices. The dynamic cluster-head nodes are determined considering the factors including node density, remaining energy and least mobility factor. Simulation test and data analysis results prove that the overall performance of proposed or projected routing method is 96.98% more effective when compared to existing routing protocols of the UWSN, and it was simulated in Linux-based Network Simulator 2 (NS2) simulation software environment. This research work helps us to reduce power consumption, response time and avoid overload, improve the throughput and network lifetime. Journal: Int. J. of Networking and Virtual Organisations Pages: 415-432 Issue: 4 Volume: 22 Year: 2020 Keywords: UWSN; cluster head; cluster head selection; base station; energy; dynamic clustering; intersect node selection; mobility. File-URL: http://www.inderscience.com/link.php?id=107576 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:4:p:415-432 Template-Type: ReDIF-Article 1.0 Author-Name: A. Sivasangari Author-X-Name-First: A. Author-X-Name-Last: Sivasangari Author-Name: P. Ajitha Author-X-Name-First: P. Author-X-Name-Last: Ajitha Author-Name: R.M. Gomathi Author-X-Name-First: R.M. Author-X-Name-Last: Gomathi Title: Light weight security scheme in wireless body area sensor network using logistic chaotic scheme Abstract: WBAN is a boon to humanity that can track the physiological activities of humans irrespective of location and time. However, the major concerns about WBAN are the security and privacy of the health data. The health data should be secured to ensure prevention of misuse of data. On the other hand, the health data about the patient must reach the physician at the right time, without any delay. As security impact over the lives of human, an effective model named as SEKBAN (Secure Key Management in WBAN) is presented that concerns about security at three phases. This proposed approach ensures the security of the data by establishing keys based on the ECG signal. Journal: Int. J. of Networking and Virtual Organisations Pages: 433-444 Issue: 4 Volume: 22 Year: 2020 Keywords: ECG signal; logistic chaotic RC7 algorithm; PRESENT. File-URL: http://www.inderscience.com/link.php?id=107577 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:4:p:433-444 Template-Type: ReDIF-Article 1.0 Author-Name: S. Pradeep Author-X-Name-First: S. Author-X-Name-Last: Pradeep Author-Name: L. Lakshminarasimman Author-X-Name-First: L. Author-X-Name-Last: Lakshminarasimman Title: A novel evolutionary algorithm (MFO) with rate monotonic scheduling for load balancing in LTE advanced networks Abstract: In recent days, long term evolution (LTE)-advanced is the newest 4G technology. In this cellular network, the femto cells offered a viable and cost-effective method of enhancing the cellular reporting and capability for each WLAN and WiMAX. However, network allocates resource dissimilar to each and every users. To overcome this difficulty, moth flame optimisation (MFO) technique is used to provide equal resource allocation to user. Using this MFO method to balance the load for routing process. Rate-monotonic scheduling (RMS) algorithm is applied to share the load equally to available user, which increases the throughput and control the overload during communication time instance. The simulation results show that the proposed MFO technique has achieved improved network performance than existing hybrid multilevel feedback queue with round robin (HMFQ-RR) and hybrid weighted round robin with shortest job first (HWRR-SJF) in terms to reduce packet loss rate, packet delay and end to end delay. Journal: Int. J. of Networking and Virtual Organisations Pages: 445-461 Issue: 4 Volume: 22 Year: 2020 Keywords: LTE; femto cells; macro cells; cluster; WLAN; WiMAX; moth flame optimisation; MFO; rate-monotonic scheduling; RMS. File-URL: http://www.inderscience.com/link.php?id=107578 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:4:p:445-461 Template-Type: ReDIF-Article 1.0 Author-Name: K.R. Remesh Babu Author-X-Name-First: K.R. Remesh Author-X-Name-Last: Babu Author-Name: Philip Samuel Author-X-Name-First: Philip Author-X-Name-Last: Samuel Title: Petri net model for resource scheduling with auto scaling in elastic cloud Abstract: Cloud service vendors offer wide range of services in a pay per use paradigm to the customers. The aim of cloud resource management is to speed up the execution of tasks and efficient usage of computing resources. The main benefit of optimal scheduling policy is reduced makespan, energy as well as cost with minimum number of service level agreement (SLA) violations. In market oriented cloud the service vendors offer vivid variety of purchasing options and also dynamic prices to the customers. In order to incorporate these purchase-promotional offers and dynamic prices, this paper proposes a Petri net model for scheduling the workload across physical servers. Here, SLA requirements considered are CPU speed, memory, makespan and bandwidth with fewer virtual machine migrations. The experimental results indicate that the proposed system efficiently performs dynamic provisioning and elasticity in multiple public clouds with auto scaling that reduces makespan, number of SLA violations, penalty cost and maximises the profit. Journal: Int. J. of Networking and Virtual Organisations Pages: 462-477 Issue: 4 Volume: 22 Year: 2020 Keywords: cloud computing; Petri nets; scheduling; migration; auto scaling. File-URL: http://www.inderscience.com/link.php?id=107590 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:22:y:2020:i:4:p:462-477 Template-Type: ReDIF-Article 1.0 Author-Name: Ning Han Author-X-Name-First: Ning Author-X-Name-Last: Han Title: QoS-enhanced bandwidth reallocation mechanism based on auction model in mobile clouds Abstract: In recent years, mobile cloud has become a promising platform to offer elastic and scalable service for our daily life. Even so, the features of mobile communication introduce a series of new challenges to conventional bandwidth allocation service. In this paper, we propose an auction-based bandwidth reallocation mechanism to handle the bandwidth shifting issue which may significantly degrade user's QoS satisfactory. To take both resource provider's revenue and user's QoS requirement into consideration, we formulate the bandwidth reallocation problem as constrained optimisation problem, and then design an auction model which introduces a trade-off parameter to adjust the auction price with aiming at improving the user QoS satisfactory in terms of resource cost. Theoretical analysis indicates that the proposed auction model is capable of balancing the benefits between cloud providers and mobile users. Performance evaluation in a realistic mobile cloud shows that the proposed bandwidth reallocation mechanism outperforms existing approaches in terms of various performance metrics. Journal: Int. J. of Networking and Virtual Organisations Pages: 1-16 Issue: 1 Volume: 23 Year: 2020 Keywords: mobile cloud; bandwidth allocation; auction model; utility function. File-URL: http://www.inderscience.com/link.php?id=107952 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:1:p:1-16 Template-Type: ReDIF-Article 1.0 Author-Name: Marc Martí Toro Author-X-Name-First: Marc Martí Author-X-Name-Last: Toro Author-Name: Ibon Zamanillo Elguezabal Author-X-Name-First: Ibon Zamanillo Author-X-Name-Last: Elguezabal Author-Name: Gaizka Garechana Anacabe Author-X-Name-First: Gaizka Garechana Author-X-Name-Last: Anacabe Title: Engaging global virtual teams: a theoretical framework proposal on employee engagement predictors in global virtual settings Abstract: In a globalised world, where technology, processes and information are more accessible than ever, the differential factor between success or failure is the human capital. Yet, if our workforce is not engaged we will not be able to obtain its full potential or simply the talent will flee to greener pastures. Another trait of the globalisation is the increasing use of global virtual teams (GVTs) to manage a great variety of projects and endeavours in our organisations across multiple cultures, but we are still failing to recognise their different needs and challenges. This paper aims to be a first step towards filling this gap and reviews the existing literature on GVTs in order to propose a framework of predictors of employee engagement, from which to set a model describing the drivers behind employee engagement in virtual and multicultural environments. Journal: Int. J. of Networking and Virtual Organisations Pages: 17-38 Issue: 1 Volume: 23 Year: 2020 Keywords: global virtual teams; GVTs; employee engagement; predictor; job demands; job resources; intercultural communication; social capital; trust; transformational leadership. File-URL: http://www.inderscience.com/link.php?id=107953 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:1:p:17-38 Template-Type: ReDIF-Article 1.0 Author-Name: Naglaa Fathy El Dessouky Author-X-Name-First: Naglaa Fathy El Author-X-Name-Last: Dessouky Title: Virtual organisations for effective economic and technological sustainable development policies in the commercial Egyptian public banking sector Abstract: Nowadays, the concept of virtual organisation (VO) denotes a paradigm shift for policymakers and managers targeting to increase the effectiveness of economic and technological sustainable development. Although the growing number of studies devoted to the topic of VO in developed countries, few studies have been directed to study developing countries, especially the MENA region. This study was inspired by the theoretical research framework proposed by Fathy El Dessouky (2011) to examine the relationship between virtual organisations and the effectiveness of economic and technological sustainable development policies in the commercial public banking sector in Egypt. The research examined four distinguished Egyptian commercial public sector banks which have taken serious steps towards e-banking system. A questionnaire with pre-prepared closed-ended questions was distributed to a random sample of 600 employees at the top, middle and executive levels of management but only 500 employees responded to the questionnaire. The results presented and demonstrated the need for specific areas of improvement regarding the VO, in particular, to satisfy the requirements of economic and technological sustainable development policies in developing countries. Journal: Int. J. of Networking and Virtual Organisations Pages: 39-66 Issue: 1 Volume: 23 Year: 2020 Keywords: virtual organisation; VO; economic and technological sustainable development; Egyptian public banking sector. File-URL: http://www.inderscience.com/link.php?id=107955 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:1:p:39-66 Template-Type: ReDIF-Article 1.0 Author-Name: Peng Xiao Author-X-Name-First: Peng Author-X-Name-Last: Xiao Title: Improving the scalability of cloud monitoring service by low communication overhead mechanisms Abstract: With the rapid growth of cloud platforms, an effective monitoring service is playing a more and more important role to provide enhanced quality-of-service (QoS) for a variety of cloud users and providers. Unfortunately, the overhead of large-scale monitoring on a large number of cloud resources tends to be prohibitive and brings a lot of negative effects. In this paper, we present three effective mechanisms, including sliding-window monitoring mechanism, monitoring event mining and filtering mechanism, and self-tuning data transferring mechanism, to handle with different kinds of communication overhead. A set of experiments are conducted to evaluate the proposed mechanisms in a real-world cloud platform, and the results indicate these mechanisms are very helpful to reduce the communication overhead in different monitoring scenarios. Journal: Int. J. of Networking and Virtual Organisations Pages: 67-81 Issue: 1 Volume: 23 Year: 2020 Keywords: cloud computing; information monitoring; quality of service; scalability; metadata management; virtual machine. File-URL: http://www.inderscience.com/link.php?id=107957 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:1:p:67-81 Template-Type: ReDIF-Article 1.0 Author-Name: Tao Zhou Author-X-Name-First: Tao Author-X-Name-Last: Zhou Title: The effect of privacy risk on users' social commerce intention Abstract: Due to the disclosure of personal information, users may face privacy risk associated with social commerce transactions. At the same time, they may obtain benefits such as social rewards from interacting with other members. Drawing on a cost-benefit perspective, this research examined the effect of privacy risk on users' social commerce intention. The results indicated that privacy assurances and social interaction have significant effects on privacy risk and social rewards, both of which in turn affect users' social commerce intention. The results imply that service providers need to adopt privacy assurances and facilitate users' social interaction in order to promote their social commerce intention. Journal: Int. J. of Networking and Virtual Organisations Pages: 82-96 Issue: 1 Volume: 23 Year: 2020 Keywords: social commerce; privacy risk; social rewards; privacy policy; social interaction. File-URL: http://www.inderscience.com/link.php?id=107973 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:1:p:82-96 Template-Type: ReDIF-Article 1.0 Author-Name: Peng Xiao Author-X-Name-First: Peng Author-X-Name-Last: Xiao Title: An extensible and scalable cloud information monitoring middleware Abstract: With the increasing complexity of cloud systems, how to efficiently manage cloud infrastructures has become a challenging task, while an effective monitoring service plays a crucial role to achieve this goal. In this paper, we present an extensible and scalable cloud monitoring middleware called extensible cloud monitoring service (ECMS), which is designed for offering online monitoring service to different monitoring requests from either cloud users or resource providers. In ECMS, a layered monitoring framework is introduced with aiming to cover different aspects of cloud monitoring requests. The implementation of ECMS is evaluated in a real-world cloud test-bed and the results indicate that it can efficiently provide online monitoring services to different kinds of clients and exhibits better scalability and robustness comparing with other monitoring systems. Journal: Int. J. of Networking and Virtual Organisations Pages: 97-111 Issue: 2 Volume: 23 Year: 2020 Keywords: cloud computing; monitoring service; resource allocation; performance prediction; data filter. File-URL: http://www.inderscience.com/link.php?id=108856 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:2:p:97-111 Template-Type: ReDIF-Article 1.0 Author-Name: Luuk P.A. Simons Author-X-Name-First: Luuk P.A. Author-X-Name-Last: Simons Author-Name: Wouter A.C. Van Den Heuvel Author-X-Name-First: Wouter A.C. Van Den Author-X-Name-Last: Heuvel Author-Name: Catholijn M. Jonker Author-X-Name-First: Catholijn M. Author-X-Name-Last: Jonker Title: eHealth WhatsApp for social support: design lessons Abstract: WhatsApp was evaluated as group support tool for a high impact healthy lifestyle intervention, with 11 young professionals. Users valued the WhatsApp group as an attractive social support addition to the existing eTools and personal coaching. Based on preliminary results: 1) the WhatsApp group generated higher participation than most other social media; 2) deploying social media use motives; 3) possibly due to the relatively high 'presence' and 'engagement' attributes of WhatsApp; 4) contributing to healthy behaviours and health advocacy. Peer coaching was confirmed as promising. However, participation declined after the initial weeks. A design lesson was that users wanted more support for community forming. Several improvement suggestions are provided. Journal: Int. J. of Networking and Virtual Organisations Pages: 112-127 Issue: 2 Volume: 23 Year: 2020 Keywords: eHealth; WhatsApp group; peer coaching; service design; healthy lifestyle; work site health; blended care; social media; social support; efficacy; motivation. File-URL: http://www.inderscience.com/link.php?id=108857 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:2:p:112-127 Template-Type: ReDIF-Article 1.0 Author-Name: Monica Kunte Author-X-Name-First: Monica Author-X-Name-Last: Kunte Author-Name: Sonali Bhattacharya Author-X-Name-First: Sonali Author-X-Name-Last: Bhattacharya Author-Name: Netra Neelam Author-X-Name-First: Netra Author-X-Name-Last: Neelam Title: Shall we ever meet; does it matter: unfreezing the constructs of virtual team effectiveness Abstract: Virtual team has gained significant research attention world over due to its potential to reduce cost and increase productivity. The present study develops a multidimensional virtual team effectiveness scale to measure virtual team members' perceived level of performance. The scale considers virtual team effectiveness as a multidimensional second order construct comprising goal orientation, interdependency, knowledge sharing, empowerment and preparedness. The scale can be used to assess virtual teams' perception towards team performance or effectiveness. Such information would help in formulating strategies on what should be the structure and characteristics of the virtual team and what values can be inculcated on teams before task allotment. Journal: Int. J. of Networking and Virtual Organisations Pages: 128-148 Issue: 2 Volume: 23 Year: 2020 Keywords: goal orientation; interdependency; knowledge sharing; empowerment and preparedness. File-URL: http://www.inderscience.com/link.php?id=108860 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:2:p:128-148 Template-Type: ReDIF-Article 1.0 Author-Name: Seyedeh Nahid Alavi Author-X-Name-First: Seyedeh Nahid Author-X-Name-Last: Alavi Author-Name: Neda Abdolvand Author-X-Name-First: Neda Author-X-Name-Last: Abdolvand Author-Name: Saeedeh Rajaee Harandi Author-X-Name-First: Saeedeh Rajaee Author-X-Name-Last: Harandi Title: A model for studying the value of the inter-organisational information systems' implementation-case study: tourism industry Abstract: The deployment of inter-organisational information systems and information sharing in the supply-chain to gain strategic benefits has become more important than ever. Although, inter-organisational information systems are essential in creating coordination between members of the supply-chain, managers are reluctant to use these systems due to the significant changes in structure, culture and business relationships. The lack of utilisation of these systems owing to environmental uncertainty in each industry, especially in the tourism industry. Hence, this study aims to examine the factors influencing the establishment of these systems. By literature review of previous studies, some factors have been derived for the development model. The results indicate that the role of environmental uncertainty is critical in achieving the benefits of inter-organisational information systems implementation. Moreover, it is suggested that implementation of inter-organisational information systems and integration of information between supply chain members has a positive impact on the overall chain performance. Journal: Int. J. of Networking and Virtual Organisations Pages: 149-170 Issue: 2 Volume: 23 Year: 2020 Keywords: information system; inter-organisational information system; IOIS; supply chain management; SCM; tourism industry; environmental uncertainty; information technology assets. File-URL: http://www.inderscience.com/link.php?id=108865 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:2:p:149-170 Template-Type: ReDIF-Article 1.0 Author-Name: Rogier Van De Wetering Author-X-Name-First: Rogier Van De Author-X-Name-Last: Wetering Author-Name: Johan Versendaal Author-X-Name-First: Johan Author-X-Name-Last: Versendaal Title: Flexible collaboration infrastructures and healthcare information exchange in hospitals: an empirical resource-based perspective Abstract: Exchanging health information and data will enhance the efficiency, quality, cost-effectiveness, and even safety of healthcare practices. However, views and strategies differ on how hospitals can facilitate or enable this exchange process. This study explores a relationship between two constructs, i.e., a flexible collaboration infrastructure – an integrated set of IT assets and networking functionalities that support applications and enable business collaboration – and health information exchange. Second, we argue that the strength of this relationship is influenced by the degree to which hospitals deploy security measures. Findings – based on an SEM-PLS analysis on a sample of 983 European hospitals – show a positive relationship between the two constructs. We additionally find that hospitals' security measures to protect the confidentiality, integrity, and availability of the data condition this particular relationship. Our findings contribute to the literature and provide valuable insights for hospitals. Journal: Int. J. of Networking and Virtual Organisations Pages: 171-188 Issue: 2 Volume: 23 Year: 2020 Keywords: flexible collaboration infrastructure; IT flexibility; IT capability; health information exchange; HIDE; PLS-MGA; data security; electronic medical record; resource-based view; hospitals. File-URL: http://www.inderscience.com/link.php?id=108867 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:2:p:171-188 Template-Type: ReDIF-Article 1.0 Author-Name: Mohamed Bin Abderrazek Boukhris Author-X-Name-First: Mohamed Bin Abderrazek Author-X-Name-Last: Boukhris Title: Corporate acquisition networks and organisational performance: a dynamic model of partner selection and network influence Abstract: This paper combines theory and empirical evidence to develop an analytical framework examining the dynamic relationship between organisational performance and patterns of change in inter-organisational network ties. My framework posits that organisational performance is influenced by patterns of network relations among organisations. For these reasons, organisations are likely to take into account performance considerations when establishing or changing their network ties. But if organisational performance is influenced by network ties, and at the same time, performance is a basis for partner selection then inter-organisational network structures and individual organisational performance are only sub-components of a more general evolutionary process linking network structure and individual behaviour over time. In this paper, the hypotheses tested and the results found reveal the presence of a complex dynamism of mutual dependence between acquisition network structures and individual organisational performance. Journal: Int. J. of Networking and Virtual Organisations Pages: 189-219 Issue: 3 Volume: 23 Year: 2020 Keywords: inter-organisational networks; partner selection; network influence; co-evolution; stochastic actor-oriented model. File-URL: http://www.inderscience.com/link.php?id=109310 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:3:p:189-219 Template-Type: ReDIF-Article 1.0 Author-Name: Nelson King Author-X-Name-First: Nelson Author-X-Name-Last: King Title: Modelling organisational value realisation in e-prescribing exchanges as a service value network Abstract: The digital network structure of e-prescribing creates a new organisational form that, to date has failed to reconcile the imbalance of those who bear the costs of creating value for other members of the system. A conceptual framework built on the service value network examines exchanges between the network enabler, which provides the e-prescribing service, and the service providers who temporarily join together to virtually process an e-prescribing transaction. Each of these exchanges is assessed using value network analysis, which determines the value created for both individual actors and the network enablers. The description of these exchanges and the context in which they are carried out are developed through interpretive synthesis that pieces together hundreds of medication management articles related to e-prescribing. The paper seeks a value-driven explanation for adoption challenges faced by e-prescribing in the United States. Journal: Int. J. of Networking and Virtual Organisations Pages: 220-246 Issue: 3 Volume: 23 Year: 2020 Keywords: service value network; SVN; value exchange; inter-organisational network; ION; healthcare IT; organisational design; micro-organisation; interpretive synthesis; IT governance. File-URL: http://www.inderscience.com/link.php?id=109319 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:3:p:220-246 Template-Type: ReDIF-Article 1.0 Author-Name: Mario A.R. Dantas Author-X-Name-First: Mario A.R. Author-X-Name-Last: Dantas Author-Name: Paulo Eduardo Bogoni Author-X-Name-First: Paulo Eduardo Author-X-Name-Last: Bogoni Author-Name: Paulo José De Freitas Filho Author-X-Name-First: Paulo José De Freitas Author-X-Name-Last: Filho Title: An application study case tradeoff between throughput and latency on fog-cloud cooperation Abstract: Nowadays, several research works are targeting fog-cloud environments cooperation in the organisations. Examples of well-known challenges are workload offloading, shared services, power consumption, security and communication delays. The communication subject is an essential metric to be observed in this cooperation. Bandwidth, throughput and latency are important parameters that affect the fog-cloud cooperation and are frequently misunderstood. In this paper, it is presented a research work, in which we took in consideration a real information system (IS) application which could execute under a cooperation of a fog-cloud configuration. Therefore, we conceived a case study to investigate specially the tradeoff between the throughput and latency parameters and provide more accurate idea of an application requirements in a fog-cloud cooperation scenario. Journal: Int. J. of Networking and Virtual Organisations Pages: 247-260 Issue: 3 Volume: 23 Year: 2020 Keywords: fog-cloud cooperation; distributed information system applications; throughtput and latency; storage; processing. File-URL: http://www.inderscience.com/link.php?id=109321 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:3:p:247-260 Template-Type: ReDIF-Article 1.0 Author-Name: Carolin Durst Author-X-Name-First: Carolin Author-X-Name-Last: Durst Author-Name: Fabian Wiser Author-X-Name-First: Fabian Author-X-Name-Last: Wiser Author-Name: Sebastian Luber Author-X-Name-First: Sebastian Author-X-Name-Last: Luber Author-Name: Nilmini Wickramasinghe Author-X-Name-First: Nilmini Author-X-Name-Last: Wickramasinghe Title: Development of an activity theory-based framework for the analysis and design of socio-technical systems Abstract: The design of socio-technical systems is a challenging task due to diverse stakeholders and complex processes that have to be mapped into software. Following a socio-technical approach for information system analysis and design results in more user-friendly systems accompanying various benefits for associated stakeholders. However, there is a lack of theories and methods which consider technical, social and organisational factors. Researchers recommended activity theory as a rich framework to study socio-technical systems. While the benefits trigger increased use of activity theory, there seems to be a shared heritage of disadvantages linked to its nature and hence its application. This article introduces a novel conceptual activity theory framework to resolve these problems and evaluates it within a case study in the context of innovation management. For the development of the framework a design science research methodology approach is followed. Journal: Int. J. of Networking and Virtual Organisations Pages: 261-293 Issue: 3 Volume: 23 Year: 2020 Keywords: activity theory; socio-technical systems; system design and analysis; design science. File-URL: http://www.inderscience.com/link.php?id=109322 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:3:p:261-293 Template-Type: ReDIF-Article 1.0 Author-Name: K. Muralidhar Author-X-Name-First: K. Author-X-Name-Last: Muralidhar Author-Name: K. Madhavi Author-X-Name-First: K. Author-X-Name-Last: Madhavi Title: Improving the dissemination of messages in MANETs through an optimal carrier Abstract: Nodes in mobile ad hoc networks (MANETs) sometimes do not have a completely connected path between them because the connectivity of a mobile network cannot be maintained for long periods. An intermittently connected MANET (ICMANET) is usually a delay tolerant network (DTN), which is capable of tolerating lengthy delays. It is not possible to achieve full connection with a DTN. The probabilistic routing protocol using the history of encounters and transitivity (PRoPHET) is the most popular DTN routing protocol. However, PRoPHET has demerits such as high resource consumption, message spread and duplication. To overcome these disadvantages, this paper proposes a method for selecting an intermediate node as an optimal carrier to disseminate messages from the source to the destination. Simulation results indicate that the proposed method provides improved delivery ratio, fewer delays and lower resource consumption, message spread and duplication than the conventional PRoPHET and fuzzy PRoPHET protocols. Journal: Int. J. of Networking and Virtual Organisations Pages: 298-311 Issue: 4 Volume: 23 Year: 2020 Keywords: mobile ad hoc network; MANET; delay tolerant network; DTN; intermittently connected network; message dissemination; PRoPHET protocol; equal delivery predictability value; optimal carrier. File-URL: http://www.inderscience.com/link.php?id=110496 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:4:p:298-311 Template-Type: ReDIF-Article 1.0 Author-Name: M. Ezhilarasi Author-X-Name-First: M. Author-X-Name-Last: Ezhilarasi Author-Name: V. Krishnaveni Author-X-Name-First: V. Author-X-Name-Last: Krishnaveni Title: Robust intrusion detection system based on fuzzy C means clustering scheme implemented in IoT-based wireless sensor networks Abstract: Research in wireless networks and communication protocols have reached new heights in recent times with the advent of state-of-the-art communication techniques and gadgets. They have found widespread utility in recent times especially with the advent of cloud computing and internet of things (IoT). IoTs offer immense potential in today's scenario aiding in smart computing and automation of things focused to making life of consumers easier and simpler. However, security of information transmitted and received over wireless networks is an essential concern to preserve privacy and authenticity of information. This research issue is however quite complex as it involves security of bulk information quite private and confidential to be delivered in a wireless medium prone to hackers. This research article has investigated the various issues related to security of IoT-based wireless sensor networks and proposed a fuzzy-based clustering algorithm to effectively detect an intrusion and make the information secure. Journal: Int. J. of Networking and Virtual Organisations Pages: 312-326 Issue: 4 Volume: 23 Year: 2020 Keywords: wireless sensor networks; intrusion detection systems; internet of things; IoT; fuzzy clustering. File-URL: http://www.inderscience.com/link.php?id=110502 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:4:p:312-326 Template-Type: ReDIF-Article 1.0 Author-Name: A. Amir Anton Jone Author-X-Name-First: A. Amir Anton Author-X-Name-Last: Jone Author-Name: T. Anita Jones Mary Pushpa Author-X-Name-First: T. Anita Jones Mary Author-X-Name-Last: Pushpa Title: Design and investigations of novel compact RSS antenna for ultra-wide band applications Abstract: In current scenario, many researchers are focused on antenna design with an emerging technology of ultra-wide band (UWB) applications. UWB provides many advantages such as high gain, low VSWR, minimum return loss and omni-direction radiation pattern which are best suitable for medical applications. The US Federal Communications Commission (FCC) has a frequency band of (3.1-10.6) GHz for this research. In this paper, a novel rectangular stair slot (RSS) antenna is proposed to achieve UWB with simple structure and compact size. The overall size of the designed antenna is 33 × 19 × 1.9 mm<SUP align="right"><SMALL>3</SMALL></SUP> with FR4 substrate. It is fed with 50 Ω micro-strip lines with a truncated ground line. In addition, bandwidth is enhanced by introducing the step-cut in the left corner of radiating patch. The proposed antenna is simulated in Ansoft HFSS simulator. The performance of antenna is exhibited by investigating a various parameters such as return loss, VSWR, gain, directivity, impedance, group delay and radiation pattern. The designed antenna is fabricated with eleven lab and measured with the help of vector network analyser. Journal: Int. J. of Networking and Virtual Organisations Pages: 327-343 Issue: 4 Volume: 23 Year: 2020 Keywords: ultra-wide band; UWB; rectangular stair slot; RSS; gain; VSWR; return loss. File-URL: http://www.inderscience.com/link.php?id=110503 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:4:p:327-343 Template-Type: ReDIF-Article 1.0 Author-Name: R. Ganesan Author-X-Name-First: R. Author-X-Name-Last: Ganesan Author-Name: B. Sowmya Author-X-Name-First: B. Author-X-Name-Last: Sowmya Title: An improved vertical handoff decision based on the modular neural network with fuzzy logic for wireless heterogeneous network Abstract: In recent times, provision of required services to consumers on an anyplace any time basis is limited by several constraints one among which is the issue of call drop. In order to eliminate this situation, the network operator should enhance vertical handoff (VHO) mechanism. VHO is the process of exchanging the ongoing wireless link to any of the wireless technologies in heterogeneous to support node mobility without fail. Normally, a mobile user can achieve VHO process by utilising the received signal strength (RSS) as single criteria. But sometimes it leads to abortive handoff, service disruption and unbalanced network load. In this paper, a modified modular neural network into fuzzy logic (MNN-FL) by using multi criteria metrics in the mobile environment is proposed. State of mobile terminal (MT) is evaluated by fuzzy logic (FL) by comparing the battery level and the mobility of MT in which identification of best access network is achieved. The high value SNRs are considered for choosing the best network access to accomplish higher data rates and throughput. The performance results demonstrates that MNN-FL-based VHDA shows well-organised network concert in terms of handoff dropping rate and enhanced throughput than existing VHO algorithms. Journal: Int. J. of Networking and Virtual Organisations Pages: 344-357 Issue: 4 Volume: 23 Year: 2020 Keywords: heterogeneous network; vertical handoff; VHO; fuzzy logic; modular neural network; MNN; mobile terminal. File-URL: http://www.inderscience.com/link.php?id=110506 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:4:p:344-357 Template-Type: ReDIF-Article 1.0 Author-Name: S. Vadivukkarasi Author-X-Name-First: S. Author-X-Name-Last: Vadivukkarasi Author-Name: S. Santhi Author-X-Name-First: S. Author-X-Name-Last: Santhi Title: A novel adaptive fuzzy-based sliding mode control for channel state estimation in cognitive radio for reduction of interference Abstract: Research in spectrum availability and its effective utilisation is becoming an epicentre of research in recent times with the increasing scarcity of radio spectrum. An effective solution is in the form of cognitive radios (CRs) which are quite intelligent to effectively utilise the scarcely available spectrum in an efficient and economic manner. Apart from being intelligent, they represent reconfigurable wireless communication systems, which are self-aware of their environment and learn to adapt it for dynamic changes. They are characteristic of efficient spectrum utilisation. This research paper defines the objective of determining the channel state information through sliding model control-based intelligent adaptive fuzzy algorithm. The CR has ability to operate in a particular radio configuration based on device status and environmental aspects including interference noise. The proposed adaptive fuzzy SMC-based channel state estimation has been compared against conventional and recent techniques and outputs established in terms of bit error rate and mean squared error. The proposed sliding rule method is quite an ideal choice for the proposed scenario characterised by dynamically changing input conditions to the sensing components of the CR network. Journal: Int. J. of Networking and Virtual Organisations Pages: 358-372 Issue: 4 Volume: 23 Year: 2020 Keywords: cognitive radio; channel state information; sliding mode control; SMC; adaptive fuzzy; bit error rate. File-URL: http://www.inderscience.com/link.php?id=110508 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:4:p:358-372 Template-Type: ReDIF-Article 1.0 Author-Name: Ravi Sekhar Yarrabothu Author-X-Name-First: Ravi Sekhar Author-X-Name-Last: Yarrabothu Author-Name: Usha Rani Nelakuditi Author-X-Name-First: Usha Rani Author-X-Name-Last: Nelakuditi Title: Non-orthogonal filter bank multi carrier systems with higher overlap factor filters for 5G communications and beyond Abstract: The current 4G long-term evolution (LTE) system has few limitations such as lower spectral efficiency, no support for asynchronous data transfer, high out-of-band emissions. Filter bank multi carrier (FBMC) technique is getting used as one of the 5G waveform modulations to overcome the above mentioned limitations. The objective of this work is to design, simulate and verify the FBMC-based 5G communication system with prototype filters of higher order spreading factors 4, 6 and 8 along with LTE to study the performance in terms of spectral efficiency, out of band emissions, peak to average power ratio (PAPR) and bit error rate (BER) under AWGN and outdoor line of sight (LOS) fading conditions using the Keysight test-bed and tools. The results show that the FBMC with higher order spreading factors resulting in to good spectral efficiency, very minimal out-of-band emissions, comparable BER performance and slightly better PAPR than that of LTE systems. Journal: Int. J. of Networking and Virtual Organisations Pages: 373-389 Issue: 4 Volume: 23 Year: 2020 Keywords: filter bank multi carrier; FBMC; highway line of sight; HLOS; long-term evolution; LTE; orthogonal frequency division multiplexing; OFDM; offset quadrature amplitude modulation; OQAM; poly-phase network; PPN; rural line of sight; RLOS; urban approaching line of sight; UALOS. File-URL: http://www.inderscience.com/link.php?id=110509 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:4:p:373-389 Template-Type: ReDIF-Article 1.0 Author-Name: Papa Rao Challagundla Author-X-Name-First: Papa Rao Author-X-Name-Last: Challagundla Author-Name: P. Sumitha Bhashini Author-X-Name-First: P. Sumitha Author-X-Name-Last: Bhashini Author-Name: P. Chandra Sekhar Reddy Author-X-Name-First: P. Chandra Sekhar Author-X-Name-Last: Reddy Title: Filter-based optimal transmission path scheduling in MIMO LTE and LTE-A networks Abstract: The multi-in and multi-out (MIMO) wireless communication with robust performance often evinces the considerable bit error rate due to the imbalance signal against to noise, contention due to load, and poor bandwidth share. Hence, it is obvious to define novel methods to select the transmission channel between the source and destination that incorporates multiple antennas in sequence. In order to this, a filter-based technique that filters the unimaginative direct transmission channels between any two antennas in sequence is proposed and explored in this manuscript. The filter that portrayed is an extended version of the wiener filter that boosted up with novel distribution diversity measure called KS-test, which estimates the significance of the channel under defined constraints called noise, load and bandwidth sharing. The experimental study denoting that the proposed filter is outperforming the contemporary models in regard to minimise the bit error rate and other quality metrics. Journal: Int. J. of Networking and Virtual Organisations Pages: 390-402 Issue: 4 Volume: 23 Year: 2020 Keywords: orthogonal frequency domain multiplexing; OFDM; uplink; third generation partnership project; long-term evolution; LTE; self-organising network; SON; KS-test; multiple input and multiple output; MIMO. File-URL: http://www.inderscience.com/link.php?id=110510 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijnvor:v:23:y:2020:i:4:p:390-402