Conference proceeding
Robust and Low Complexity Source Localization in Wireless Sensor Networks Using Time Difference of Arrival Measurement
2010 IEEE Wireless Communication and Networking Conference, pp.1-5
04/2010
DOI: 10.1109/WCNC.2010.5506637
Abstract
Wireless source localization has found a number of applications in wireless sensor networks. In this work, we investigate robust and low complexity solutions to the problem of source localization based on the time-difference of arrivals (TDOA) measurement model. By adopting a min-max approximation to the maximum likelihood source location estimation, we develop two low complexity algorithms that can be reliably and rapidly solved through semi-definite relaxation. Our approach hinges on the use of a reference sensor node which can be optimized according to the Cramer-Rao lower bound or selected heuristically. Our low complexity estimate can be used either as the final location estimation output or as the initial point for other traditional search algorithms.
Details
- Title: Subtitle
- Robust and Low Complexity Source Localization in Wireless Sensor Networks Using Time Difference of Arrival Measurement
- Creators
- Enyang Xu - University of California, DavisZhi Ding - University of California, DavisSoura Dasgupta - University of Iowa
- Resource Type
- Conference proceeding
- Publication Details
- 2010 IEEE Wireless Communication and Networking Conference, pp.1-5
- Publisher
- IEEE
- DOI
- 10.1109/WCNC.2010.5506637
- ISSN
- 1525-3511
- eISSN
- 1558-2612
- Language
- English
- Date published
- 04/2010
- Academic Unit
- Electrical and Computer Engineering
- Record Identifier
- 9984197443002771
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