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Optimized edge appearance probability for cooperative localization based on tree-reweighted nonparametric belief propagation
Technical University of Madrid, Spain. (Signal Processing Applications Group)
Chalmers University of Technology, Sweden.
Politecnico di Torino, Italy.
Technical University of Madrid, Spain. (Signal Processing Applications Group)
2011 (English)In: Proc. of IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP), 2011, 3028-3031 p.Conference paper, Oral presentation only (Refereed)
Abstract [en]

Nonparametric belief propagation (NBP) is a well-known particle-based method for distributed inference in wireless networks. NBP has a large number of applications, including cooperative localization. However, in loopy networks NBP suffers from similar problems as standard BP, such as over-confident beliefs and possible non-convergence. Tree-reweighted NBP (TRW-NBP) can mitigate these problems, but does not easily lead to a distributed implementation due to the non-local nature of the required so-called edge appearance probabilities. In this paper, we propose a variation of TRW-NBP, suitable for cooperative localization in wireless networks. Our algorithm uses a fixed edge appearance probability for every edge, and can outperform standard NBP in dense wireless networks.

Place, publisher, year, edition, pages
2011. 3028-3031 p.
Keyword [en]
Cooperative localization, nonparametric belief propagation, tree-reweighted belief propagation, wireless networks
National Category
Engineering and Technology Signal Processing Communication Systems
Identifiers
URN: urn:nbn:se:liu:diva-81420DOI: 10.1109/ICASSP.2011.5946296ISBN: 978-1-4577-0538-0 (print)OAI: oai:DiVA.org:liu-81420DiVA: diva2:552321
Conference
IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP), Prague, Czech Rep.
Available from: 2012-09-13 Created: 2012-09-13 Last updated: 2012-09-24

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Publisher's full textOptimized edge appearance probability for cooperative localization based on tree-reweighted nonparametric belief propagation

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Savic, Vladimir

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CiteExportLink to record
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  • apa
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Output format
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