International Journal of Communication Networks and Distributed Systems http://www.inderscience.com/browse/index.php?journalID=261&year=2012&vol=8&issue=1/2 Inderscience Publishers Ltd en-uk International Journal of Communication Networks and Distributed Systems 1754-3916 1754-3924 © 2012 Inderscience Publishers Ltd editor@inderscience.com https://www.inderscience.com/images/files/coverImgs/ijcnds_scoverijcnds.jpg http://www.inderscience.com/browse/index.php?journalID=261&year=2012&vol=8&issue=1/2 http://www.inderscience.com/link.php?id=44320 Next generation heterogeneous networks require an effective handover scheme, optimised specially to support network mobility. The paper proposes an architecture to support seamless mobility of mobile networks across heterogeneous networks. We consider the vehicular scenario where a vehicle is provided with mobility through different internet service providers (ISPs) and propose to use multiple mobile routers-based handover scheme in vehicles. The multiple mobile routers architecture is extended to include multiple home agents (HAs) where each HA belongs to different administrative domains. We carry out comparative performance evaluation of the handover performance of the proposed scheme in regard to UDP and TCP throughput, service disruption time, and signalling overhead. Moreover, we analyse the impact of vehicle speed and overlapping distance of access routers on packet loss during handover period. The simulation results show that the proposed scheme provides a mobile network with seamless mobility across heterogeneous networks. The overlapped reception of packets from different access routers significantly minimises packet losses during handover even without reducing handover latency. A seamless handover scheme for vehicles across heterogeneous networks
A. Prakash; R. Verma; R. Tripathi; K. Naik
International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 4 - 23
Next generation heterogeneous networks require an effective handover scheme, optimised specially to support network mobility. The paper proposes an architecture to support seamless mobility of mobile networks across heterogeneous networks. We consider the vehicular scenario where a vehicle is provided with mobility through different internet service providers (ISPs) and propose to use multiple mobile routers-based handover scheme in vehicles. The multiple mobile routers architecture is extended to include multiple home agents (HAs) where each HA belongs to different administrative domains. We carry out comparative performance evaluation of the handover performance of the proposed scheme in regard to UDP and TCP throughput, service disruption time, and signalling overhead. Moreover, we analyse the impact of vehicle speed and overlapping distance of access routers on packet loss during handover period. The simulation results show that the proposed scheme provides a mobile network with seamless mobility across heterogeneous networks. The overlapped reception of packets from different access routers significantly minimises packet losses during handover even without reducing handover latency.

]]> 10.1504/IJCNDS.2012.044320 International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 4 - 23 A. Prakash; R. Verma; R. Tripathi; K. Naik Department of Electronics and Communication Engineering, Indian Institute of Information Technology, Allahabad 211012, India. ' Department of Electronics and Communication Engineering, MNNIT, Allahabad-211004, India. ' Department of Electronics and Communication Engineering, MNNIT, Allahabad-211004, India. ' Department of Electrical and Computer Engineering, University of Waterloo, Waterloo-N2L 3G1, Canada seamless handover multiple mobile routers network mobility vehicle communications vehicular networks vehicle speed mobile networks simulation packet losses handover latency. 2011-12-19T23:20:50-05:00 8 1/2 4 23 2011-12-19T23:20:50-05:00 http://www.inderscience.com/link.php?id=44321 Future wireless networks (FWNs) are expected to be a convergence of different kinds of wireless technologies, such as cellular technologies, wireless local area networks (WLANs), wireless metropolitan area networks, wireless sensor networks, and traditional wired networks. The internet protocol (IP) will be potentially adopted as the common networking protocol for diverse networking technologies including the next generation of cellular networks using system architecture evolution (SAE). However, the IP architecture has several known challenges, such as mobility, multihoming, routing scalability, location privacy, path preference selection, etc. One of the greatest problems preventing the networks from overcoming these challenges is that the IP address is contextually overloaded, both as locators and identifiers. As a result, in this paper, we describe the issues of all-IP wireless networks, and survey recent proposals focusing on IP address overloading that can be applied to FWNs. Future wireless networks: key issues and a survey (ID/locator split perspective)
Chakchai So-In; Raj Jain; Subharthi Paul; Jianli Pan
International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 24 - 52
Future wireless networks (FWNs) are expected to be a convergence of different kinds of wireless technologies, such as cellular technologies, wireless local area networks (WLANs), wireless metropolitan area networks, wireless sensor networks, and traditional wired networks. The internet protocol (IP) will be potentially adopted as the common networking protocol for diverse networking technologies including the next generation of cellular networks using system architecture evolution (SAE). However, the IP architecture has several known challenges, such as mobility, multihoming, routing scalability, location privacy, path preference selection, etc. One of the greatest problems preventing the networks from overcoming these challenges is that the IP address is contextually overloaded, both as locators and identifiers. As a result, in this paper, we describe the issues of all-IP wireless networks, and survey recent proposals focusing on IP address overloading that can be applied to FWNs.

]]> 10.1504/IJCNDS.2012.044321 International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 24 - 52 Chakchai So-In; Raj Jain; Subharthi Paul; Jianli Pan Department of Computer Science, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand. ' Department of Computer Science and Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA. ' Department of Computer Science and Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA. ' Department of Computer Science and Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA future internet future wireless internet next generation wireless networks NGWNs mobility multihoming location privacy multi-interface selection ID-locator split network architectures future wireless networks FWNs IP address overloading internet protocol. 2011-12-19T23:20:50-05:00 8 1/2 24 52 2011-12-19T23:20:50-05:00 http://www.inderscience.com/link.php?id=44322 Coordinating heterogeneous networking systems to meet diverse application requirements has become a significant issue in the future internet. Network virtualisation provides a promising approach to solving this problem. Understanding the end-to-end service performance in future internet is a significant opening topic, which requires modelling and analysis on service provisioning in network virtualisation. Network heterogeneity and resource abstraction in network virtualisation bring new challenges on service modelling and analysis. The research presented in this paper addresses these challenges. The main contributions made in this paper include a new model for end-to-end network service delivery systems in network virtualisation environments, and the techniques for analysing end-to-end performance of service delivery in the virtualisation-based internet. The model and techniques developed in this paper are general and independent of network architectures and implementation technologies; therefore can be applied to analyse the performance of various heterogeneous networking systems converged in the next generation internet. End-to-end modelling and performance analysis for network virtualisation in the next generation internet
Qiang Duan
International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 53 - 69
Coordinating heterogeneous networking systems to meet diverse application requirements has become a significant issue in the future internet. Network virtualisation provides a promising approach to solving this problem. Understanding the end-to-end service performance in future internet is a significant opening topic, which requires modelling and analysis on service provisioning in network virtualisation. Network heterogeneity and resource abstraction in network virtualisation bring new challenges on service modelling and analysis. The research presented in this paper addresses these challenges. The main contributions made in this paper include a new model for end-to-end network service delivery systems in network virtualisation environments, and the techniques for analysing end-to-end performance of service delivery in the virtualisation-based internet. The model and techniques developed in this paper are general and independent of network architectures and implementation technologies; therefore can be applied to analyse the performance of various heterogeneous networking systems converged in the next generation internet.

]]> 10.1504/IJCNDS.2012.044322 International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 53 - 69 Qiang Duan Information Science and Technology Department, The Pennsylvania State University Abington College, 1600 Woodland Road, Abington, PA, USA communication networks network virtualisation modelling performance analysis service performance next generation internet network heterogeneity resource abstraction. 2011-12-19T23:20:50-05:00 8 1/2 53 69 2011-12-19T23:20:50-05:00 http://www.inderscience.com/link.php?id=44323 Next-generation networking is moving out of the LAN and adopting cloud computing increasingly. Virtual machines and clouds mask the hardware infrastructure from the LAN administrator as well. Cloud architecture will be ubiquitous and in the future clouds will drop the unnecessary distinction of platform as a service, leaving a slightly larger infrastructure as a service (IaaS) level and an application level (SaaS). Provisioning costs will get lower but the costs of data breaches will continue to climb. This paper explores the security ramifications of cloud-adoption by reviewing the literature and presenting a collection of best-practices for security in the cloud. The top ten cloud-security practices in next-generation networking
Wolf Michael Halton; Syed Rahman
International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 70 - 84
Next-generation networking is moving out of the LAN and adopting cloud computing increasingly. Virtual machines and clouds mask the hardware infrastructure from the LAN administrator as well. Cloud architecture will be ubiquitous and in the future clouds will drop the unnecessary distinction of platform as a service, leaving a slightly larger infrastructure as a service (IaaS) level and an application level (SaaS). Provisioning costs will get lower but the costs of data breaches will continue to climb. This paper explores the security ramifications of cloud-adoption by reviewing the literature and presenting a collection of best-practices for security in the cloud.

]]> 10.1504/IJCNDS.2012.044323 International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 70 - 84 Wolf Michael Halton; Syed Rahman Atlanta Clout Technology, Inc., 302 N Colonial Homes Cir. NW, Atlanta, GA 30309, USA. ' Department of Computer Science and Engineering, University of Hawaii-Hilo, 200 W. Kawili Street, Hilo, HI 96720, USA next generation networks cloud adopters best practices cloud computing open source cloud security. 2011-12-19T23:20:50-05:00 8 1/2 70 84 2011-12-19T23:20:50-05:00 http://www.inderscience.com/link.php?id=44324 SIP, H.323 and Jingle have been widely used as VoIP protocols. As the session establishment period differs in these protocols and their different implementations, interoperability problems occur. This paper presents a middleware on mobile devices with a generic framework supporting the three protocols and their different implementations. The applications (rmobvoip, rmoblog, mobrmi, mobcorba) implement distributed protocols to solve interoperability problems and to overcome the scarce resources of mobile devices. A peer with this middleware is provided with three options (SIP, H.323 and Jingle) and it can choose any of the protocols or implementations depending on the protocol type used by other peer of the session. A mobile middleware to solve interoperability problems in VOIP streaming session
Rossi Kamal; Mosaddek Hossain Kamal; Muhammad Mostafa Monowar; Choong Seon Hong
International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 85 - 100
SIP, H.323 and Jingle have been widely used as VoIP protocols. As the session establishment period differs in these protocols and their different implementations, interoperability problems occur. This paper presents a middleware on mobile devices with a generic framework supporting the three protocols and their different implementations. The applications (rmobvoip, rmoblog, mobrmi, mobcorba) implement distributed protocols to solve interoperability problems and to overcome the scarce resources of mobile devices. A peer with this middleware is provided with three options (SIP, H.323 and Jingle) and it can choose any of the protocols or implementations depending on the protocol type used by other peer of the session.

]]> 10.1504/IJCNDS.2012.044324 International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 85 - 100 Rossi Kamal; Mosaddek Hossain Kamal; Muhammad Mostafa Monowar; Choong Seon Hong Department of Computer Engineering, Kyung Hee University, 1 Seocheon, Giheung, Yongin, Gyeonggi, 446-701, Korea. ' Department of Computer Science and Engineering, University of Dhaka, Dhaka-1000, Bangladesh. ' Department of Computer Engineering, Kyung Hee University, 1 Seocheon, Giheung, Yongin, Gyeonggi, 446-701, Korea. ' Department of Computer Engineering, Kyung Hee University, 1 Seocheon, Giheung, Yongin, Gyeonggi, 446-701, Korea session initiation protocol SIP H.323 Jingle interoperability mobile middleware streaming session voice over internet protocol VoIP mobile devices. 2011-12-19T23:20:50-05:00 8 1/2 85 100 2011-12-19T23:20:50-05:00 http://www.inderscience.com/link.php?id=44325 Recent advances in wireless sensor networks (WSNs) have led to several new promising applications including habitat monitoring and target tracking. However, data communication between nodes consumes a large portion of the entire energy consumption of the WSNs. Consequently, data aggregation techniques can significantly help to reduce the energy consumption by eliminating redundant data travelling back to the base station. The security issues such as data integrity, confidentiality, and freshness in data aggregation become crucial when the WSN is deployed in a remote or hostile environment where sensors are prone to node failures and compromises. There is currently research potential in securing data aggregation in WSNs. With this in mind, the security issues in data aggregation for the WSN will be discussed in this article. After that, the 'state-of-the-art' in secure data aggregation schemes will be surveyed and then classified into two categories based on the number of aggregator nodes and the existence of the verification phase. A taxonomy of secure data aggregation in wireless sensor networks
Hani Alzaid; Ernest Foo; Juan Manuel González Nieto; DongGook Park
International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 101 - 148
Recent advances in wireless sensor networks (WSNs) have led to several new promising applications including habitat monitoring and target tracking. However, data communication between nodes consumes a large portion of the entire energy consumption of the WSNs. Consequently, data aggregation techniques can significantly help to reduce the energy consumption by eliminating redundant data travelling back to the base station. The security issues such as data integrity, confidentiality, and freshness in data aggregation become crucial when the WSN is deployed in a remote or hostile environment where sensors are prone to node failures and compromises. There is currently research potential in securing data aggregation in WSNs. With this in mind, the security issues in data aggregation for the WSN will be discussed in this article. After that, the 'state-of-the-art' in secure data aggregation schemes will be surveyed and then classified into two categories based on the number of aggregator nodes and the existence of the verification phase.

]]> 10.1504/IJCNDS.2012.044325 International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 101 - 148 Hani Alzaid; Ernest Foo; Juan Manuel González Nieto; DongGook Park Information Security Institute, Queensland University of Technology, Brisbane QLD 4000, Australia; Computer Research Institute, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh 11442, Saudi Arabia ' Information Security Institute, Queensland University of Technology, Brisbane QLD 4000, Australia ' Information Security Institute, Queensland University of Technology, Brisbane QLD 4000, Australia ' School of Information Technology, Sunchon National University, Sunchenon Jeonnam 540-742, South Korea wireless sensor networks WSNs secure data aggregation performance analysis node failures node compromises wireless networks data security data integrity confidentiality verification. 2011-12-19T23:20:50-05:00 8 1/2 101 148 2011-12-19T23:20:50-05:00 http://www.inderscience.com/link.php?id=44283 MAC layer plays an important role for providing quality of service in mobile ad hoc networks. Accordingly, a real-time data frame should be provided with higher channel access priority than that of a best-effort data frame. This paper proposes a strict priority-based variant of the IEEE 802.11 DCF for QoS provision at the MAC layer of MANETs. The service differentiation is achieved by two mechanisms: a) a priority-based non-overlapping contention window selection, so that smaller backoff timer values are assigned to real-time data frames to reduce their channel access delay; b) a priority-based queue management and packet scheduling to improve the intra-node service differentiation. Performance of the proposed scheme is investigated for single hop scenarios using a Markov chain model whose accuracy is validated through simulation. Furthermore, simulation studies in multihop scenarios show suitability of the proposed scheme to provide an enhanced level of service differentiation, especially in terms of end-to-end delay and throughput, for supporting QoS at MAC layer of MANETs. Enhanced service differentiation using priority-based MAC protocol for MANETs
Nityananda Sarma; Sukumar Nandi
International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 149 - 187
MAC layer plays an important role for providing quality of service in mobile ad hoc networks. Accordingly, a real-time data frame should be provided with higher channel access priority than that of a best-effort data frame. This paper proposes a strict priority-based variant of the IEEE 802.11 DCF for QoS provision at the MAC layer of MANETs. The service differentiation is achieved by two mechanisms: a) a priority-based non-overlapping contention window selection, so that smaller backoff timer values are assigned to real-time data frames to reduce their channel access delay; b) a priority-based queue management and packet scheduling to improve the intra-node service differentiation. Performance of the proposed scheme is investigated for single hop scenarios using a Markov chain model whose accuracy is validated through simulation. Furthermore, simulation studies in multihop scenarios show suitability of the proposed scheme to provide an enhanced level of service differentiation, especially in terms of end-to-end delay and throughput, for supporting QoS at MAC layer of MANETs.

]]> 10.1504/IJCNDS.2012.044283 International Journal of Communication Networks and Distributed Systems, Vol. 8, No. 1/2 (2012) pp. 149 - 187 Nityananda Sarma; Sukumar Nandi Department of Computer Science and Engineering, Tezpur University, Tezpur 784028, India. ' Department of Computer Science and Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India quality of service QoS mobile ad hoc networks MANETs medium access control MAC real-time traffic best-effort traffic service differentiation priority-based MAC contention window selection queue management backoff timer resetting mobile networks packet scheduling. 2011-12-19T23:20:50-05:00 8 1/2 149 187 2011-12-19T23:20:50-05:00