题目：Elimination of Exposed Terminal Problem Using Signature Detection
时间：2012年5月18日（周四） 上午10点
地点：西区教三楼3204教室
讲座内容：
Exposed terminals can significantly reduce the throughput of wireless networks. In this talk, I will represent the design of Interference Resistant Multiple Access (IRMA), a novel cross layer protocol that can combat exposed terminals and exploit the concurrent transmissions in wireless networks, both helping in achieving higher throughput compared to the 802.11 standard and other recent protocols. IRMA proposes a signature detection method in the physical layer to combat control frames' collisions, thus exploits the concurrency at the transmitter side. IRMA also designs a new NAV update scheme in the MAC layer to differentiate the interference ranges of different transmission links, thus exploits the concurrency of all non-interfering links. In addition, IRMA is based on the 802.11 standard so that it can be implemented into current devices. Hardware experimental results demonstrate the feasibility of the signature detection method. Simulations show that IRMA outperforms other protocols significantly.
报告人简介：
Dr. Wei Lou is currently an assistant professor in the Department of Computing, The Hong Kong Polytechnic University, Hong Kong, China. He received the B.Eng. degree in Electrical Engineering from Tsinghua University, China in 1995, the M.Eng. degree in Telecommunications from Beijing University of Posts and Telecommunications, China in 1998, and the Ph.D. degree in Computer Engineering from Florida Atlantic University, USA in 2004. Dr. Lou's current research interests are in the areas of mobile ad hoc and sensor networks, peer-to-peer networks, delay tolerant networks, mobile computing, and wireless networking. He has worked intensively on designing, analyzing and evaluating practical algorithms with the theoretical basis, as well as building prototype systems. His research work is supported by Hong Kong GRF grants and Hong Kong Polytechnic University ICRG grants.
主办单位：计算机科学与技术学院