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中国计算机学会传感器网络专业委员会特邀学术报告

发布日期:2007-6-8

报告题目:Localization Solutions for WSN

时    间:2007年6月13日15:30~17:00

地    点:中国科学院计算技术研究所四层报告厅

报告人:

Tian He

Assistant Professor, University of Minnesota

Ph.D, University of Virginia

报告摘要:

Wireless Sensor Network (WSN) systems have been used in many promising applications including military surveillance, habitat monitoring and wildlife tracking. While many middleware services to support these applications have been designed and implemented successfully, node localization - finding the position of a sensor node - remains one of the most difficult research challenges to be solved practically in realistic settings.

In this talk, we present several state-of-the-art localization solutions for wireless devices. We explain why they are inadequate to satisfy the full set of requirements imposed by wireless sensor networks. We present two latest designs and system implementations, which are believed to be the most encouraging results to date. The first one is an even-based scheme called spotlight, which localizes sensor nodes using the spatiotemporal correlation of controlled events. With spotlight, we obtain centimeter-level localization error over a long range in outdoor environments. The second one, dubbed as Stardust, is a light-based localization scheme by using optical retro-reflectors (CCR). With stardust, we can localize hundreds of sensors within seconds. At the end of the talk, we discuss some open research problems in this research direction.

报告人简介:

Dr. Tian He is currently an assistant professor in Department of Computer Science and Engineering at University of Minnesota. He received the Ph.D. degree under Professor John A. Stankovic from the University of Virginia, Virginia in 2004, and the M.S. degree from the Institute of Computing Technology, Chinese Academy of Sciences, China, in 2000, and the B.S. degree from the Nanjing University of Science & Technology, Nanjing, China in 1996.

Dr. He is author and co-author of over fifty publications in premier sensor network conferences and journals with over a thousand citations. Dr. He has received many research awards in the area of sensor networking, including the best paper awards at the Second International Conference on Mobile Ad-hoc and Sensor Networks and the Fourth ACM Workshop on Security of Ad Hoc and Sensor Networks. Dr. He served several chair positions in international conferences and on many premier program committees such as SenSys and Infocom, and also currently serves as an editorial board member for two international sensor network journals. His research includes wireless sensor networks, intelligent transportation systems, real-time embedded systems and distributed systems, supported by National Science Foundation and other agencies.

More information about his research is available at http://www-sers.cs.umn.edu/~tianhe/.

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