Robust localization in wireless sensor networks

Rongfei Fan*, Hai Jiang, Shaohua Wu, Naitong Zhang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Citations (Scopus)

Abstract

Localization is essential for wireless sensor networks (WSNs). It is to determine the positions of sensor nodes based on incomplete mutual distance measurements. In this paper, to measure the accuracy of localization algorithms, a ranging error model for time of arrival (TOA) estimation is given, and the Cramer-Rao Bound (CRB) for the model is derived. Then an algorithm is proposed to deal with the case where 1) ranging error accumulation exists, and 2) some anchor nodes broadcast inaccurate/wrong location information. Specifically, we first present a ranging error-tolerable topology reconstruction method without knowledge of anchor node locations. Then we propose a method to detect anchor nodes that have inaccurate/wrong position information. Simulations demonstrate the improvement of our algorithm compared to others.

Original languageEnglish
Title of host publicationICC 2008 - IEEE International Conference on Communications, Proceedings
Pages4209-4213
Number of pages5
DOIs
Publication statusPublished - 2008
Externally publishedYes
EventIEEE International Conference on Communications, ICC 2008 - Beijing, China
Duration: 19 May 200823 May 2008

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Conference

ConferenceIEEE International Conference on Communications, ICC 2008
Country/TerritoryChina
CityBeijing
Period19/05/0823/05/08

Keywords

  • Cramer-rao bound
  • Localization
  • Topology reconstruction
  • Wireless sensor networks

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