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Distributed localization in wireless sensor networks: a quantitative comparison

Distributed localization in wireless sensor networks: a quantitative comparison,Koen Langendoen,Niels Reijers

Distributed localization in wireless sensor networks: a quantitative comparison   (Citations: 434)
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This paper studies the problem of determining the node locations in ad-hoc sensor networks. We compare three distributed localization algorithms (Ad-hoc positioning, Robust positioning, and N -hop multilateration) on a single simulation platform. The algorithms share a common, three-phase structure: (1) determine node-anchor distances, (2) compute node positions, and (3) optionally refine the positions through an iterative procedure. We present a detailed analysis comparing the various alternatives for each phase, as well as a head-to-head comparison of the complete al- gorithms. The main conclusion is that no single algorithm performs best; which algorithm is to be preferred depends on the conditions (range errors, connectivity, anchor fraction, etc.). In each case, however, there is significant room for improving accuracy and/or increasing coverage. � 2003 Elsevier B.V. All rights reserved.
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