A Framework of Coded Video
Multicast
Pin-Han Ho
Department of Electrical and Computer
Engineering
University of Waterloo
Friday, February 12, 3pm
Location: BAB024 (Bahen Basement)
Abstract:
The talk introduces a
new framework of coded video multicast in Wireless broadband access for
supporting real-time multimedia services such as scheduled IPTV. The talk will
firstly give an overview on the proposed coded video multicast framework,
which is comprised of an interplay of multiple description coding (MDC) on
successively refinable (SR) information source with superposition coding (SPC)
based layered modulation at channel. For achieving simple implementation of
SPC modulation, the talk will introduce a novel Logical SPC technique which
can completely avoid the use of hardware-based signal superposition and
signal-interference cancellation (SIC) based demodulation. Based on the
proposed framework, the end to end information distortion will be analyzed by
assuming Gaussian source and channel, and the developed close-form information
distortion upper bound will be further minimized by manipulating the
protection code. For dynamic operations, a method will be introduced that can
near-optimally determine the system parameters. Extensive experiment results
will be provided to show validate the proposed framework and the proposed
parameter selection approach.
Bio:
Dr.
Pin-Han Ho received his B.Sc. and M.Sc. degree from the Electrical Engineering
department in National Taiwan University in 1993 and 1995, respectively, and
Ph.D. degree from Queen's University at Kingston at 2002. He is now an associate
professor in the department of Electrical and Computer Engineering, University
of Waterloo, Canada. Professor Pin-Han Ho is the author/co-author of more than
150 refereed technical papers, several book chapters, and the co-author of a
book on optical networking and survivability. His current research interests
cover a wide range of topics in broadband wired and wireless communication
networks, including network survivability and failure localization, wireless
video multicast, and cognitive radio. He is the recipient of Distinguished
Research Excellent Award in the ECE department of U of Waterloo, Early
Researcher Award (previously known as Premier Research Excellence Award) in
2005, the Best Paper Award in SPECTS'02, ICC'05 Optical Networking Symposium,
and ICC'07 Security and Wireless Communications symposium, and the Outstanding
Paper Award in HPSR'02.
Host of Talk:
Ben Liang
(liang@comm.utoronto.ca)