Speaker: Prof. Xuesong Tan, University of Electronic Science and Technology of ChinaTime: 9:00-10:00 , Oct.21
Location: SIST3 201
Host: Prof. Yang Yang
Abstract:
Rendezvous in the blind fashion is a fundamental issue for unconnected wireless users to execute handshake and establish initial communication under the dynamic interference from hostile jammers. The present talk first reviews various known techniques, including dedicated control channel, split phase, clustering, and channel hopping (CH), for wireless users to achieve blind rendezvous without any central control and points out that the CH-based blind rendezvous outperforms the other three techniques in terms of rendezvous efficiency, robustness and overhead. Based on the combinatorial concept of relaxed cyclic difference set, we then propose various novel CH schemes for synchronized/asynchronous wireless users with single/multiple radios to achieve blind rendezvous as fast as possible. This minimization of rendezvous delay is especially crucial for improving the performance of neighbor discovery in wireless network under distributed control and also useful for such delay-sensitive applications as real-time voice and emergency communications.
Bio:
Xuesong Tan received the B.S. degree from Sichuan University, Chengdu, China, in 1998, the M.S. degree from the University of Electronic Science and Technology of China, Chengdu, China, in 2001, and the Ph.D. degree from the Chinese University of Hong Kong, Hong Kong, in 2004, all in electrical engineering. He currently works as a professor at the National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu, China. His research interests include communication networks, wireless and mobile communications, switching theory, and network coding.
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