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Belief propagation distributed estimation in sensor networks: An optimized energy accuracy tradeoff
Conference proceeding

Belief propagation distributed estimation in sensor networks: An optimized energy accuracy tradeoff

John MacLaren Walsh, Phillip A. Regalia and IEEE
2008 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-12, pp 2297-2300
01 Jan 2008

Abstract

Acoustics Computer Science Computer Science, Artificial Intelligence Computer Science, Cybernetics Engineering Engineering, Biomedical Engineering, Electrical & Electronic Imaging Science & Photographic Technology Life Sciences & Biomedicine Mathematical & Computational Biology Radiology, Nuclear Medicine & Medical Imaging Science & Technology Technology Telecommunications
The estimation error performance of Gaussian belief propagation based distributed estimation in a large sensor network employing random sleep strategies is explicitly evaluated for a simple model using density evolution analysis. Both regular sleep strategies, in which the number of nodes awake at any time instant is fixed, as well as irregular sleep strategies, in which the number of awake nodes may vary, are analyzed. The calculated estimation error is used to study the tradeoff between estimation accuracy and energy consumption, as well as to dictate the optimal parameters for the random sleep strategy.

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3 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Acoustics
Computer Science, Artificial Intelligence
Computer Science, Cybernetics
Engineering, Biomedical
Engineering, Electrical & Electronic
Imaging Science & Photographic Technology
Mathematical & Computational Biology
Radiology, Nuclear Medicine & Medical Imaging
Telecommunications
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