Event Details
Layered Source-Channel Coding Over Two-Way Relay Networks
Presenter: Prof. Jie Liang, SFU
Supervisor:
Date: Thu, February 28, 2013
Time: 13:30:00 - 14:30:00
Place: EOW 430
ABSTRACT
Abstract:
In this talk, we study the performances of various layered source-channel coding schemes over two-way relay networks, where the sources are coded into different layers and transmitted by progressive coding or superposition coding. The two-way relay network employs multiple-access-broadcast or time-division-broadcast protocol, and the relay uses decode-and-forward protocol. We first derive the optimal distortion exponents of different schemes at high signal-to-noise ratios (SNRs). Fast resource allocation algorithms are then developed to optimize the expected distortion of the source at finite SNRs. Simulation results show that layered coding achieves better performance than single rate coding, and the proposed fast resource allocation scheme is near-optimal.
Bio:
Jie Liang received the B.E. and M.E. degrees from Xi'an Jiaotong University, China, the M.E. degree from National University of Singapore (NUS), and the PhD degree from the Johns Hopkins University, USA, in 1992, 1995, 1998, and 2003, respectively. In May 2004, he joined the School of Engineering Science, Simon Fraser University, where he is currently an Associate Professor. His research interests include Image/Video Coding and multimedia communications.
If you need any further information related to the talk, please contact Lin Cai (cai@ece.uvic.ca).