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Título:
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Distributed AOA-based source positioning in NLOS with sensor networks
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Autor/a:
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Giménez Febrer, Pedro Juan; Pagès Zamora, Alba Maria; Silva Pereira, Silvana; López Valcarce, Roberto
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
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Abstract:
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Abstract:
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This paper focuses on the problem of positioning a
source using angle-of-arrival measurements taken by a wireless
sensor network in which some of the nodes experience non lineof-sight
(LOS) propagation conditions. In order to mitigate the
errors induced by the nodes in NLOS, we derive an algorithm
that combines the expectation-maximization algorithm with a
weighted least-squares estimation of the source position so that
the nodes in NLOS are eventually identified and discarded.
Moreover, a distributed version of this algorithm based on a
diffusion strategy that iteratively refines the position estimate
while driving the network to a consensus is presented. |
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Abstract:
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Peer Reviewed |
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Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
-Wireless sensor networks
-Positioning
-AOA
-NLOS
-Distributed estimation
-Sensor networks
-Xarxes de sensors sense fils |
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Derechos:
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Tipo de documento:
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Artículo - Versión presentada
Objeto de conferencia |
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Editor:
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Institute of Electrical and Electronics Engineers (IEEE)
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Compartir:
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