VLeungComSocDLT Nov 2010
- Access and Service Convergence over Next Generation Networks
Victor C.M. Leung
Dept. of Electrical and Computer Engineering
The University of British Columbia
Vancouver, BC, Canada V6T 1Z4
Abstract Wireless networking technologies have progressed rapidly over the past decades to emerge from research laboratories and become an integral part of everyday life in society. In less than twenty years, cellular networks have advanced through three generations, and many licensed or license-free wireless networking technologies such as wireless metropolitan area networks (WMANs), wireless local area networks (WLANs) and wireless personal area networks (WPANs) have emerged. A common feature of contemporary wireless and wireline networks is that they provide access to or operate over IP-based networks. It is commonly agreed that next generation networks will consist of a conglomerate of access network technologies integrated by broadband IP-based core networks. Telecommunication service providers are embracing the fact that subscribers will use different technologies, often supported in converged multimodal terminals, to access the Internet as appropriate for their circumstances. They are taking advantage of the capabilities of next generation networks to offer a wide range of services to subscribers over a converged IP network regardless of the access technology. In this context, research and development efforts over the last few years have been focused on how to integrate and manage heterogeneous wireless/wireline access networks for a good service experience by subscribers. This presentation will review the features and characteristics of converged access networks, describe the network and service architectures enabling access network convergence on the one hand and service convergence on the other, and discuss some of the technical issues that need to be addressed to provide a good service experience to subscribers. Novel solutions for selection of the best access network before connection establishment, and maintaining a connection across different access networks by vertical handoffs will be presented. Future research directions will be discussed.
Biography Victor C. M. Leungreceived the B.A.Sc. (Hons.) degree in electrical engineering from the University of British Columbia (UBC) in 1977, and was awarded the APEBC Gold Medal as the head of the graduating class in the Faculty of Applied Science. He attended graduate school at UBC on a Natural Sciences and Engineering Research Council Postgraduate Scholarship and completed the Ph.D. degree in electrical engineering in 1981.
From 1981 to 1987, Dr. Leung was a Senior Member of Technical Staff at Microtel Pacific Research Ltd. (later renamed MPR Teltech Ltd.), specializing in the planning, design and analysis of satellite communication systems. In 1988, he was a Lecturer in the Department of Electronics at the Chinese University of Hong Kong. He returned to UBC as a faculty member in 1989, where he is currently a Professor and the holder of the TELUS Mobility Research Chair in Advanced Telecommunications Engineering in the Department of Electrical and Computer Engineering. He is a member of the Institute for Computing, Information and Cognitive Systems at UBC Dr. Leung has co-authored more than 500 technical papers in international journals and conference proceedings. His research interests are in the areas of architectural and protocol design and performance analysis for computer and telecommunication networks, with applications in satellite, mobile, personal communications and high speed networks.
Dr. Leung is a registered professional engineer in the Province of British Columbia, Canada. He is a Fellow of IEEE, a Fellow of the Engineering Institute of Canada, and a Fellow of the Canadian Academy of Engineering. He is a Distinguished Lecturer of the IEEE Communications Society in 2009-2010. He has served on the editorial boards of the IEEE Journal on Selected Areas in Communications – Wireless Communications Series, the IEEE Transactions on Wireless Communications and the IEEE Transactions on Vehicular Technology, and is serving on the editorial boards of the IEEE Transactions on Computers, the Journal of Communications and Networks, Computer Communications, as well as several other journals. He has guest-edited several journal special issues, and served on the technical program committee of numerous international conferences. He is the General Co-Chair of ChinaCom 2011. He chaired the TPC of the wireless networking and cognitive radio track in IEEE VTC-fall 2008. He was the General Chair of Adhocnets 2010 and QShine 2007, and Symposium Chair for Next Generation Mobile Networks in IWCMC 2006-2008. He was a General Co-chair of IEEE CWCN 2010, IEEE MobiWorld 2010, BodyNets 2010, IEEE EUC 2009 and ACM MSWiM 2006, and a TPC Vice-chair of IEEE WCNC 2005.