报告题目：Localization Solutions for WSN
Assistant Professor, University of Minnesota
Ph.D, University of Virginia
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
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.
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/.