Toronto
Networking Seminar
Accessing
Heterogeneous Wireless Networks for Always Best Connected Services
Victor
Leung
Department of Electrical and
Computer Engineering
University
of British Columbia
Date:
Friday, May 25, 3pm
Location: BA 1220
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. Over a short time span of less than twenty
years, cellular networks have advanced through three generations. The
third generation (3G) personal communication service (PCS) networks
that have been rolling out in the new millennium are leading the way in
service convergence, by extending not only voice service, but also
messaging, web, and even television services to mobile subscribers. At
the same time, many 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 and are providing strong competitions to PCS offered by
traditional wireless carriers. Where the road of progress in wireless
networking services will lead us, and what technologies will be
embraced in future generation wireless networks, are timely questions
that both researchers and practitioners are trying to answer. There is
now a strong consensus in the wireless networking technical community
that the next generation wireless networks will be evolutionary and
will embrace multiple wireless technologies and system components built
upon a common IP core network. It is envisaged that advanced subscriber
terminals will be equipped with multiple or smart radio interfaces, and
will interact with several alternate access networks to provide the
subscriber with an "always best connected" (ABC) service that is
cognizant of the requirements of the subscriber's current application
and the capability and quality of service supported by the diverse
access alternatives. The convergent of multiple wireless networking
technologies to provide a coordinated service to mobile subscribers can
therefore be considered a technological trend that is filling the
generation gap in wireless networking. This presentation will describe
the features and characteristics of converged wireless networks,
elaborate on some of the technical challenges that need to be tackled
to make ABC service over converged wireless networks a reality, and
describe several novel solutions we have developed to address these
challenges.
Bio:
Victor
C.M. Leung received the B.A.Sc. (Hons.) and Ph.D. degrees in electrical
engineering from the University of British Columbia (U.B.C.) in 1977
and 1981, respectively. From 1981 to 1987, Dr. Leung was a
Senior Member of Technical Staff at MPR Teltech Ltd., Burnaby, BC,
Canada. In 1988, he was a Lecturer in the Department of Electronics at
the Chinese University of Hong Kong. He returned to U.B.C. as a faculty
member in 1989, where he currently holds the positions of Professor and
TELUS Mobility Research Chair in the Department of Electrical and
Computer Engineering, and is a member of the Institute for Computing,
Information and Cognitive Systems. He also holds a guest professorship
at Jilin University, China. He was a project leader and a member of the
Board of Directors in the Canadian Institute for Telecommunications
Research, a Network of Centres of Excellence funded by the Canadian
Government. 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. He has authored or
co-authored more than 300 publications in refereed international
journals and conferences. The many academic awards that Dr.
Leung has received include the APEBC Gold Medal as the head of the
graduating class in the Faculty of Applied Science, UBC, and Natural
Sciences and Engineering Research Council Postgraduate Scholarships.
Dr. Leung is a Fellow of IEEE and a voting member of ACM. He is an
editor of the IEEE Transactions on Wireless Communications, an
associate editor of the IEEE Transactions on Vehicular Technology, and
an editor of the International Journal of Sensor Networks. He
has served on the committees of numerous international conferences. He
is serving as the General Chair of QShine 2007 in Vancouver, BC,
Canada, and chairs the Next Generation Mobile Networks Symposium in
IWCMC 2007 and 2006. He was the General Co-chair of IEEE/ACM MSWiM'05
in Montreal, PQ, the TPC Vice-chair of IEEE WCNC'05 in New Orleans, LA,
and the Local Chair of IWCMC'06.
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