Forthcoming articles

International Journal of Vehicle Information and Communication Systems

International Journal of Vehicle Information and Communication Systems (IJVICS)

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International Journal of Vehicle Information and Communication Systems (22 papers in press)

Special Issue on: Impacts of Vehicle Information and Communication Systems

  • Range frequency based distance computation technique for positioning in vehicular ad-hoc network   Order a copy of this article
    by P. Mohamed Shakeel, S. Baskar 
    Abstract: The intent of VANET (Vehicular Ad-hoc Network) is to allow efficient information dissemination aimed at the safety and comfort of passengers and drivers and to safeguard them from risk. Several fascinating and wide ranging potential applications that aid travellers are driver assistance, collision detection, internet access, map location and so on. The most precarious one is collision detection and avoidance. A collision happens when the distance between neighboring vehicles rapidly decreases. Thus, a precise and accurate knowledge about the distance between vehicles has to be determined to allow a robust collision avoidance service. Hence, in this paper, a Range Frequency based Distance Computation (RFDC) technique is proposed to provide distance estimation between every vehicle that approximates to the actual distance. The performance of the proposed approach is analysed in terms of delay, energy used, accuracy and received signal strength, and compared with the existing MDS (multi beacon signal).
    Keywords: VANET; distance; range frequency; received signal strength.

Special Issue on: ICACCE 2018 Information Technology and Intelligent Transportation

  • A conceptual framework and architecture for mobile governance   Order a copy of this article
    by Shailendra Mishra, Mayank Singh 
    Abstract: Mobile governance (M-governance) mainly facilitates government to public (G2P) and public to government (P2G) communication for better public service in terms of information transmission and dissemination. This research aims to develop an M-governance framework and architecture for mobile governance for educational institutions to access communication services. The proposed M-governance framework is built up on the basis of a technology acceptance model (TAM) and 15 enablers, including perceived ease of use, perceived usefulness, perceived access, interpersonal influence, perceived trustworthiness, perceived mobility, transparency of governance, compatibility, flexibility, perceived security, perceived enjoyment, network provider service, completeness of service, location influence in the service and emergency management. The proposed application architecture for M-governance is beneficial because it allows administrators of the affiliated colleges to use the mobile device of their choice but Android, and it offers a simple solution.
    Keywords: mobile governance; M-governance; technology acceptance model; interpretive structural modelling; remote monitoring agent.

  • Prediction and avoidance of real-time traffic congestion system for Indian metropolitan cities   Order a copy of this article
    by Mayank Singh, Viranjay M. Srivastava 
    Abstract: The expansion of sensors and data is the catalyst for traffic simulators to help monitor and manage transportation systems in real time to improve key performance metrics and overall efficiency. As a specific instance, consider vehicle tracking. The future path of an arbitrary driver on a road network is uncertain, while the benefit of using this knowledge grows each year. The number of accidents has rapidly increased in Indian perspective over the past few decades. Owing to the accidents, a large number of infrastructure, resource and human losses occur. Government and researchers are working hard to find the solution to reduce the number of road accidents. In this paper, we have proposed an architectural framework for an Indian urban transport system to gather, store, and mine data, to get information to avoid traffic accidents and congestion and to predict alternative routes in real time. A combination of machine learning and data mining techniques are used to implement the proposed system. The implemented system will help in the reduction of traffic accidents and will suggest alternate routes to avoid the traffic congestion for an Indian urban transport network operation in real time. Real-time data is fed into a traffic simulation, which generates future states of the road network and alternative routes to avoid congestion. Because the results of the system need to be both faster than real-time and accurate, the acceleration of the simulation execution and the accuracy of the prediction models are critical.
    Keywords: congestion avoidance; congestion prediction; real-time traffic monitoring; road accident avoidance.

  • Assessing the performance of different TCP congestion mechanisms in underwater wireless sensor networks   Order a copy of this article
    by Hajar Bennouri, Amine Berqia 
    Abstract: In recent years, the world has seen the birth of many applications in the underwater environment, the need to support this development requires an urgent adaptation to all the constraints of this environment to be able to explore it in the best conditions. Transmission in Underwater Wireless Sensor Networks (UWSNs) is a key enabler technology for future ocean-monitoring systems. Owing to the harsh nature of the marine environment, UWSNs present a whole set of challenges that do not exist in traditional terrestrial Wireless Sensor Networks (WSNs). The use of acoustic waves in UWSN networks unfortunately suffers from a high propagation delay, as well as a limited available bandwidth due to the high noise level, making the use of the different traditional existing protocols a major challenge to adapt them in this environment. However, studying systemically the behaviour of TCP protocol under different parameters and for different routing protocols in underwater environment has not received much research attention. In this paper, we try to bridge the gap by evaluating the performances of different variants of TCP as a transport layer for UWSNs with the aim of improving TCP performance in underwater environment. We then chose two already defined TCP mechanisms, TCP Vegas and New Reno, to evaluate the effects of varying TCP packet size and the density number of TCP connections in the network under two popular routing protocols, namely AODV and DSDV. We conclude that the performances of the two TCP using DSDV routing provide a more efficient result than those by using AODV routing protocol and that New Reno gives better results than Vegas in UWSNs. In addition, simulation results provide some guidelines that will serve for performance tuning for each TCP variant.
    Keywords: underwater wireless sensor networks; TCP; TCP Vegas; New Reno; AODV; DSDV.

Special Issue on: Big Data Innovation For Sustainable VANET Management

  • QoS-based routing for free space optical mobile ad hoc networks   Order a copy of this article
    by Salma Fauzia, Kaleem Fatima 
    Abstract: Quality of Service (QoS) provisioning during routing in mobile ad-hoc networks has long been an exigent task for researchers. The challenges such as node mobility and route maintenance during topology changes and link characteristics become more sophisticated if the scenario requires maintaining a clear Line of Sight (LOS) between the transmitter and receiver. Similar is the case of a Free Space Optical Mobile Ad Hoc network (FSO MANET), which was originally designed for military applications and delay-tolerant networks. Routing for successful delivery of data and efficient use of network bandwidth remains a challenging issue in such networks. A routing protocol should take care of the directional nature of transmission and LOS requirement in a transceiver pair in FSO MANET. In this work, the traditional routing protocol Ad Hoc On-Demand Distance Vector (AODV) is implemented in an FSO MANET to satisfy the QoS bandwidth requirement. The results showed an improvement in throughput if bandwidth is pre-specified as a QoS parameter. The performance is evaluated by varying node speeds and varying the number of nodes in the network.
    Keywords: routing protocols; AODV; QoS; FSO.

  • Reconfigurable hardware architecture of public key crypto processor for VANET and wireless sensor nodes   Order a copy of this article
    by Leelavathi Gopalakrishna, Shaila Kalanath, K.R. Venugopal 
    Abstract: This work proposes encryption of text and image data, embedding as elliptic curve point. Finite field arithmetic is used efficiently in this reconfigurable crypto system. Pre-computation for text data and image input conversion is done using MATLAB. This architecture is tailored for cryptographic applications and VANET using Xilinx Spartan-xc3s100e-4-fg320 FPGA with Verilog coding. Total encryption and decryption time results around 10.09021 microsecond for 100 x 100 image, 22.091 microsecond for 256 x 256 image and 0.029 microsecond for a message. The message size varies with different stream size, and dynamic mapping of input data and a cipher image with high randomness indicate good security, i.e., less vulnerable to attacks. An entropy statistical analysis is performed on plain and encrypted images to assess the strength of the proposed method. The encryption throughput rate is 450 Mbps and area throughput is 3.63, which is a good improvement over previous implementations.
    Keywords: elliptic curve cryptography; entropy; ElGamal; FPGA; mapping; public key cryptography; VANET.

  • Queue size estimation of nodes in a heterogeneous ocean network with multiple priority traffic   Order a copy of this article
    by Simi Surendran, Maneesha Vinodini Ramesh, Ushakumari P V 
    Abstract: Fishing is a major occupation for millions of people in coastal states of India and other developing countries. Fishing vessels go beyond 100 km from the shore in search of fish and the existing offshore communication technologies can provide connectivity only up to 20 km. Ocean network is a heterogeneous wireless network of fishing vessels at sea to provide low-cost communication to the shore. The information exchange between fishing vessels involves many types of message with varying priorities. We consider prioritisation of emergency data, normal data, voice and video messages between fishing vessels. As the connectivity is intermittent, it is necessary to select the most appropriate message from the transmission queue for forwarding. This paper focuses on designing a queuing model with multiple priorities to estimate the queue size of each type of message in a node. Solving the steady state equations give the number of emergency packets, data packets, audio packets and video packets waiting in the node to be transmitted. Hence the message dissemination algorithm can select the appropriate queue for transmitting the message to maximise the available resources with fairness.
    Keywords: wireless network; queuing model; message prioritisation; quasi birth death process; data dissemination.

  • Enhanced cluster-based stable path for load balancing and reducing overhead using artificial bee colony in MANETS   Order a copy of this article
    by Ramadass Sundar, Ayyaswamy Kathirvel 
    Abstract: A routing overhead plays a vital role in Mobile Ad hoc Networks (MANET). This overhead affects the nature of the whole system. A cluster-based route discovery process along with load balancing the cluster head (CH) is the primary constraint in a routing protocol. In previous algorithms, the main focus is on a stable path between starting and ending points, without considering the overhead of initial route discovery during the transmission period and also the member of balanced CH. The path fails in a route and again re-initiates the discovery process which may lead to additional overhead, increased delay and waste of resources. This paper proposes a new algorithm that reduces the routing overhead for Cluster-Based initial Route Discovery and Data Transmission using Artificial Bee Colony (CBRT-ABC) with Ad-hoc On-demand Distance Vector (AODV). This calculation uses the conduct of honey bees' calculation to discover high adequate neighbour node for initial route discovery based on average residual power, average signal strength and minimum broadcasting delay, and a path has been established. The available path will be tested for failure prior to the data transmission. If a path is going to fail in the near future, then handoff technique is implemented to avoid the existing path failure. This process will eliminate re-route discovery process and then reduce the additional routing overhead also. Another problem that is overcome by this algorithm is the load balancing in each CH. This CH controls and shares the information with all its members more effectively. As a result, the CH maintains a long period of processing time and produces a reliable path. Whenever the optimal path is retained then the additional route discovery overhead is removed. This projected algorithm is computed in the NS-2 simulator and, with estimating through the FTMPR, it diminishes the transmission delay routing overhead and improves the packet delivery ratio. The results show that resources are used effectively.
    Keywords: artificial bee colony; route discovery; residual power; signal strength; minimum broadcasting delay; routing overhead.
    DOI: 10.1504/IJVICS.2019.10022179
     
  • DESR: differential evolutionary secure routing protocol for mobile ad-hoc networks   Order a copy of this article
    by Shashi Prabha, Raghav Yadav 
    Abstract: A mobile ad-hoc network is an infrastructure-less spontaneously formed wireless environment that is deployed without any centralised unit. All the nodes in this kind of network are assumed to be trustworthy but, in the real scenario, a few can be malicious and therefore a secure and reliable route for data transmission is always a matter of question. This paper presents an effective routing solution for mobile ad- hoc networks with differential evolution. The proposed algorithm is termed as differential evolution secure routing (DESR) protocol for mobile ad-hoc networks with an effective fitness function. The component metrics for the fitness function are the trust factor, residual battery power, and node stability, which are intended to select the most promising routes through the proposed differential secure routing algorithm. The simulation is carried out in various scenarios to evaluate the performance of the DESR algorithm with packet delivery ratio, average end-to-end delay, and throughput. Results are compared with two algorithms PSO and TSR.
    Keywords: differential evolution; mutation; crossover; trust factor; fitness function.

  • A stable link connectivity based data communication through neighbour node using traffic-less path in MANET   Order a copy of this article
    by S. Sankar Ganesh, G. Ravi 
    Abstract: Mobile Ad-hoc Network (MANET) is a collection of wireless mobile devices communicating with each other. Mobile devices are taking responsibility of routing packets between each other's nodes without any infrastructure. Generally, all the network uses the hybrid routing protocols to handle the connectivity link flow in the environment. But, the hybrid rules did not consider the routing-related problems, such as node selection and link analysis. So, the design of Data Communication through Neighbour Stable Link Connectivity (DC-NSLC) routing algorithm is implemented for fast and efficient traffic-less routing in the network. In these routing algorithms work in the three phases, they are analysis of neighbour node information, neighbour node link establishment, and data communication using neighbour node predicted link. Each and every phase evaluates the node movement along with the traffic design. The information gathered in this node will overflow through the following handling unit inside the related node. In addition, a node allotted to a preparing unit due to internode conditions is called node combination. These data combinations give information to the following, subordinate gatherings. Between-node frames are measured by the amount of exchange each connection would store. Also, the proposed technique keeps up different data about the routing framework, such as the number of association midpoints, the node weight at each association point, the partition between the connections node, and the distance of two nodes in the system. The performance of our proposed research methodology is analysed by using the Network Simulator (NS2).
    Keywords: routing; data communication; stable link; neighbour node; MANET.

Special Issue on: Research Challenges and Emerging Technologies in Autonomous Systems

  • Design and implementation of smart breaker system for electricity board using autonomous systems   Order a copy of this article
    by R. Vanitha 
    Abstract: According to the statistics of the Indian government, India loses 16.2 billion rupees owing to power theft by the people in all the states, and many of the people dont pay their bills and still use the electricity for free because of the improper existing systems in the use. The Electricity Board in India also experiences lot of troubles in various tasks such as energy auditing, billing, and regulating power in order to keep the system running smoothly. To prevent the above-mentioned problems a smart circuit breaker kit for the Electricity Board is developed with the help of Arduino Uno, Relay, GSM module, Subscribers Identity Module (SIM), and a real time clock. The major problem of power theft can also be prevented through the control over the energy meter. The controlling of energy meter will be easy as the GSM signals become part of daily life as they are available everywhere.
    Keywords: automatic billing system; GSM; Arduino; smart breaker system; SIM; RTC; IoT.

Special Issue on: ICCIC2018 Emerging Technologies for Traffic and Transportation Science

  • Reliable whitelist management technique for warned nodes in MANET   Order a copy of this article
    by Jayanthi Kamal, Mohammed Ali Hussain 
    Abstract: Cluster-based MANETs are preferred to flat-based owing to less overhead as compared with the latter. Once the malicious nodes are detected their certificates need to be revoked. In non-voting-based mechanisms the accuser is put in the whitelist and the accused node is put in the blacklist by the certificate authority. The nodes are judged based on the trust calculation in the blacklist. If the trust value is below the threshold value, the nodes are dropped from the whitelist into the blacklist; otherwise, the nodes are removed from the network by revoking the certificate. The nodes in the whitelist are deprived of accusing the malicious nodes in the network. To enhance reliability, we remove the warned nodes from the whitelist and make them eligible to accuse other nodes. The removal of the nodes is provided by using a threshold value calculated by a certificate authority and trust-based mechanism.
    Keywords: MANET; malicious nodes; accuser; revocation; certificate authority; threshold; certificate revocation list; whitelist; blackhole attack; AODV; public key infrastructure.

  • Effective use of cloud datacentre and allocating user demands to virtual machines using LMRO algorithm   Order a copy of this article
    by Madhina Banu, S. Aranganathan 
    Abstract: Cloud computing is a recent trend for modifying the computing technique strongly, and cloud storage assets will be recurrently accessed. The method works based on a black box method that has difficulty to correlate acquired data for internal resource management techniques. The simulation is not permitted to conduct comparative analysis owing to a huge amount of features required. The Load Maintenance and Resource Optimisation (LMRO) algorithm uses cloud data centres and allocates user demands to virtual machines (VMs). The load balancer keeps track of cloudlets processed by every virtual machine and tries to balance the active load. The method has a main data centre controller and load balancers to collect and analyse the information. Based on experimental evaluation, the proposed LMRO technique reduces 0.065 seconds TRT (Task Request Time), 0.20 seconds DPT (Datacentre Processing Time), 0.0125$ VMC (Virtual Machine Cost) and improves 19.25% TRP (Throughput) compared with conventional techniques.
    Keywords: Resource optimization; load balancing; cloud computing; data center process time; virtual machine allocation; virtual machine placement; quality of services; task request time; virtual machine cost; throughput.

  • A cluster-based secured data transmission protocol for efficient data gathering in wireless sensor networks   Order a copy of this article
    by Sharmila Pandian, Selwin Mich Priyadharson 
    Abstract: Nowadays Wireless Sensor Networks (WSNs) play a major role in wireless networks and are widely used in all surveillance and domestic applications. Secured data gathering becomes a major concern and big challenge in WSN in the presence of intruders. In existing works, secured data transmission was achieved through symmetric or asymmetric cryptographic schemes. However, it still suffers from high overhead and less confidentiality. In this research, a Cluster-based Secured Data Transmission Protocol (CSDTP) is developed to provide efficient data gathering in a network. This protocol contains three modules. In the first module, cluster-based secured routing is established from a Cluster Head (CH) to cluster members by implementing route request, route reply and route assign phase. In the second module, data transmission is initiated based on the communication period and trajectory path computation. High packet delivery is achieved during this module. In the third module, secured data gathering is implemented using symmetric key encryption and decryption algorithm. Data-gathering efficiency is improved and secured in the entire network region using CSDTP. Results of simulations show that the CSDTP provides a high ratio of data gathering, more packet delivery ratio, less end-to-end delay, high packet integrity ratio and less overhead than existing schemes.
    Keywords: wireless sensor network; intrusion detection system; trust recommendation; data integrity; clock-based determination; packet delivery ratio; detection efficiency and delay.

  • Genetic algorithm based road network design for optimising the vehicle travel distance   Order a copy of this article
    by N. Shanmugasundaram, K. Sushita, S. Pradeep Kumar, E.N. Ganesh 
    Abstract: One-way road networks can be designed by aid of computer program. However, the use of genetic algorithms in such design is new. This research paper presents a new approach to search out and determine appropriate travel directions for the one-way road network. The main objective is to minimise the total distance travelled by vehicles. To calculate total distance, a branch-and-bound technique with breadth first search is applied to search for the shortest path between the start point and the end point. Results demonstrate that the genetic algorithm approach can be successfully applied to one-way road network design for two case studies. In the future, the genetic algorithm can be applied to design the one-way road network in general.
    Keywords: transportation; genetic algorithm; one-way road network design.

  • Identity verification based cryptography for detecting intrusion in wireless sensor networks   Order a copy of this article
    by Joseph Antony Rajan, E.R. Naganathan 
    Abstract: IDentity Verification Based Cryptosystem (IDVBC) mechanism is implemented here for providing a novel and secured data transmission among nodes. Token-based node identity verification along with certificates and data encoding mechanism is carried out to reduce the complexity in wireless networks. By applying local identity verification scheme, the communication overheads are reduced and hence the certificate management process is simplified. Each sensor owned a local private key and should get matched with the public key generated by the base station. Encoding process uses hash signature schemes for enhancing the security measures in the network. Source node sends the encrypted or encoded data with the generated local private key and labelled Token ID. Once the Token ID verification is done and the key matches with the global private key generated by the BS, the decrypted or decoded data is received by the receiver. The proposed IDVBC scheme has the ability to detect malicious activity of the node, to provide high level security and able to tolerate several security attacks.
    Keywords: cryptosystem; certificate management; token verification; hash signature; WSN.

Special Issue on: Vehicular Networking and Communication Systems

  • Modelling and analysis of urban vehicle traffic congestion characteristics based on vehicle-borne network theory   Order a copy of this article
    by Minglei Song, Rong Rong LI, Binghua Wu, Minwo Lee 
    Abstract: In order to solve the problems of pollution and traffic safety caused by vehicle traffic congestion, this paper establishes an analysis model of urban vehicle traffic congestion characteristics based on vehicle network theory. Through the application of vehicular network, the extended mobility model of the vehicular network is established, and the extended motion model of the vehicular network is simulated with simulation tools and middleware tools to obtain the trajectory data of urban traffic vehicles. Based on the trajectory data, the survival analysis of urban vehicle traffic congestion is carried out. Kaplan-Meyer non-parametric regression model was used to estimate the duration of urban vehicle traffic congestion, and its distribution characteristics were quantitatively analysed. The experimental results show that the traffic congestion characteristics of urban vehicles are significantly different under different influencing factors, and the error of the trajectory data of urban traffic vehicles obtained by the proposed model is less than 1%.
    Keywords: vehicle-borne network; theory; urban vehicle; traffic congestion; characteristics; analysis model; duration.

  • Research on self-organising control method of urban intelligent traffic signal based on vehicle networking   Order a copy of this article
    by Chunmei Wang 
    Abstract: In order to overcome the problem of poor application of traditional urban intelligent traffic signal self-organisation control, a method of urban intelligent traffic signal self-organisation control based on a vehicle network is proposed. A signal self-organising control system based on on-demand distribution is constructed, in which the fixed unit module RSU receives vehicle traffic data through sensors. RDU is used to monitor vehicle data and construct signal adaptive control strategy, which can reduce vehicle waiting time and realise urban intelligent traffic signal self-organising control. Simulation results show that the average number of stops at the intersection at the same time point is less than 0.3. The average stopping time is 8.728 s, which is lower than other methods. The average pass rate at the intersection is 98.65%, which is higher than other methods and feasible.
    Keywords: vehicle networking; signal self-organising control system; urban intelligent transportation; on-demand distribution idea.

  • Automatic recognition of vehicle image based on monocular vision and environmental perception   Order a copy of this article
    by Daqin Wu, HaiYan Hu 
    Abstract: Aiming at the problems of low recognition accuracy and long time-consuming in current automobile recognition research, an automobile image recognition method based on monocular vision and environmental perception is proposed. A hybrid filter is composed of median filter and mean filter to suppress image noise and preserve the edge features of the signal. The non-target background is removed by environmental perception, and the target area is obtained with the geometric information in the vehicle shadow as the constraint condition. According to the result of image processing and the determination of target area, HAAR-like feature vectors of targets are extracted and dimensionality reduction is processed. The training classifier is constructed by using the obtained eigenvectors to recognize the current frame vehicles. The experimental results show that the method has the advantages of high recognition accuracy and less time-consuming.
    Keywords: environment perception; monocular vision; vehicle image; recognition.

  • Design of recognition and compensation system for vehicle communication signal based on vehicle networking   Order a copy of this article
    by Min Yang 
    Abstract: A vehicle communication signal recognition and compensation system based on vehicle network is proposed to overcome the problems of the traditional vehicle communication signal recognition systems, such as poor anti-interference and signal recognition accuracy. The hardware part of the system consists of three modules. The software USES inverse operator and Wiener filter compensates the vehicle communication signal and improves the precision of signal recognition. The MFCC parameters are extracted as the main parameters of signal recognition, and the distance measurement between the unknown communication signal and each template is obtained by using the nonlinear registration mode DTW, so as to realise the optimal registration mode of signal pattern recognition. Experimental results show that the anti-interference performance of the system is about 110 dB, and the recognition rate of different types of signal is more than 85%, which proves that the system has high recognition accuracy and strong anti-interference ability.
    Keywords: vehicle networking; vehicle-borne; communication signal; signal recognition; compensation system.

  • Anti-jamming method for vehicle communication network based on internet of vehicles technology   Order a copy of this article
    by Xiangjun Tian 
    Abstract: In order to solve the problems of poor signal anti-interference ability, high error rate and low network coverage in traditional vehicle communication network and to improve the communication quality of vehicle communication network, an anti-interference method of vehicle communication network based on vehicle internet technology is proposed. The maximum cellular rate resource reuse algorithm (MCRRA) is used to optimise the link resources of vehicle communication network, so as to realise the optimal allocation of vehicle communication network resources. Then, the wavelet denoising method is used to filter the signal noise after resource allocation in the vehicle communication network. Finally, the improved threshold function method of wavelet transform is used to compensate the pseudo-Gibbs phenomenon and signal loss in vehicle communication network. Experiments show that this method can effectively suppress the interference of the vehicle communication network. The error rate of the vehicle communication network using this method is only 10%, and the coverage rate is as high as 98.7%.
    Keywords: internet of vehicles; vehicle communication; communication network; anti-jamming; cellular link.

Special Issue on: ICCIC2018 Emerging Technologies for Traffic and Transportation Science

  • Fairness-based heuristic workflow scheduling and placement in cloud computing   Order a copy of this article
    by Narayani Raman, W. Aisha Banu 
    Abstract: Cloud computing has become a commercial business environment for small and large scale industries to avail the resources. Resource allocation is a major challenging issue in cloud computing because of virtualisation and high availability. Cloud application requests are processed dynamically to achieve resource utilisation based on the diverse demand for cloud resources. The expected allocation of resources to the application is inequitable. This paper analyses the QoS metrics of cloud services based on user satisfaction and the proposed Fairness-based Heuristic Workflow Scheduling and Placement (FHWSP) algorithm with a new multi-objective function. It minimises the overall profit and time of execution with respect to the characteristics of tasks and physical servers in the datacentre. Optimal solution of the proposed algorithm is achieved in three phases. In the first phase, the classification of user requests is done referring to the QoS metrics. In the second phase, the user requests are scheduled to an available virtual machine. In the third phase, a justice function is used to calculate the justice value of scheduled tasks with respect to characteristics and migrated to a suitable virtual machine for execution. The evaluation of the proposed FHWSP algorithm with the existing traditional algorithms is simulated in a CloudSim environment. The experimental results improve the QoS parameters in terms of 5% in makespan and 3% in total execution cost of the scheduling and placement algorithm in the CloudSim environment.
    Keywords: cloud computing; fairness; heuristic; placement; satisfaction; virtualisation.