【電機系書報討論演講訊息】

書報討論網址：http://www.ee.nthu.edu.tw/~ee591000/

演講公告網址：/p/403-1175-2629-1.php

題   目：Towards Efficient Wireless Video Distribution

講   員：蘇冠銘 博士

時       間：2012年12月27日(星期四) 上午10時至11時

地       點：資電館206教室
 

Abstract:

Wireless video distribution has become the major traffic and main application in current wireless networks. Unlike plain data, the compressed video stream exhibits different characteristics, such as high decoding dependency, non-linear response from human visual system, and redundancy in both spatial and temporal domain. Additional strict delay constraint is imposed when real-time streaming application is deployed. To provide satisfactory video quality for real-time video application, it is critical to efficiently utilize the limited system resources, including the adopted video applications and the chosen wireless networks. The problem will become even more challenging in a multi-user scenario where each user encodes/transmits different video content with different motion activity, experiences different channel condition, and shares the limited network bandwidth. In this talk, we focus on the multi-user video distribution problem from the resource allocation's point of view. We first study a multi-user video conferencing system in WLAN by jointly optimizing all users' uplink/downlink channels and video characteristics. With exploration of multi-dimensional diversity, the proposed system can significantly outperform the traditional approach. We then study a multi-user streaming system in a full-fledged application-aware cooperative network, where the relay node is equipped with advanced application layer tools, such as side information generation and video processing capability, to enhance the overall reconstructed video quality.

Biography:

Dr. Guan-Ming Su received the BSE degree in Electrical Engineering from National Taiwan University, Taipei, Taiwan, in 1996 and the MS and PhD degrees in Electrical Engineering from the University of Maryland, College Park, U.S.A., in 2001 and 2006, respectively. He is currently with Dolby Labs, Sunnyvale, CA. Prior to this he has been with the R&D Department, Qualcomm, Inc., San Diego, CA; ESS Technology, Fremont, CA; and Marvell Semiconductor, Inc., Santa Clara, CA. His research interests are multimedia communications and multimedia signal processing. He is the inventor of 15 U.S. patents and pending applications. He is the co-author of 3D Visual Communications (John Wiley and Sons, 2013)

   Dr. Su is an associate editor of Journal of Communications; guest editor in Journal of Communications special issue on Multimedia Communications, Networking, and Applications; and Director of review board and R-Letter in IEEE Multimedia Communications Technical Committee. He serves as the Publicity Co-Chair of IEEE GLOBECOM 2010, International Liaison Chair in IEEE ICME 2011, Technical Program Track Co-Chair in ICCCN 2011, and TPC Co-Chair in ICNC 2013. He is a Senior member of IEEE.

歡  迎  聽  講