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A Comparison of Parametric and Sample-Based Message Representation in Cooperative Localization

Author(s)
Lien, Jaime; Ferner, Ulric John; Srichavengsup, Warakorn; Wymeersch, Henk; Win, Moe Z.
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Abstract
Location awareness is a key enabling feature and fundamental challenge in present and future wireless networks. Most existing localization methods rely on existing infrastructure and thus lack the flexibility and robustness necessary for large ad hoc networks. In this paper, we build upon SPAWN (sum-product algorithm over a wireless network), which determines node locations through iterative message passing, but does so at a high computational cost. We compare different message representations for SPAWN in terms of performance and complexity and investigate several types of cooperation based on censoring. Our results, based on experimental data with ultra-wideband (UWB) nodes, indicate that parametric message representation combined with simple censoring can give excellent performance at relatively low complexity.
Date issued
2012-01
URI
http://hdl.handle.net/1721.1/76635
Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics; Massachusetts Institute of Technology. Laboratory for Information and Decision Systems; Massachusetts Institute of Technology. Research Laboratory of Electronics
Journal
International Journal of Navigation and Observation
Publisher
Hindawi Publishing Corporation
Citation
Lien, Jaime et al. “A Comparison of Parametric and Sample-Based Message Representation in Cooperative Localization.” International Journal of Navigation and Observation 2012 (2012): 1–10.
Version: Final published version
ISSN
1687-5990
1687-6008

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