Enhanced sensing error probability estimation for iterative data fusion in the low SNR regime

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dc.contributor.authorOlabarrieta, Ignacio
dc.contributor.authorDel Ser, Javier
dc.contributor.institutionIA
dc.date.accessioned2024-07-24T11:45:59Z
dc.date.available2024-07-24T11:45:59Z
dc.date.issued2010
dc.description.abstractIn this paper we consider a network of distributed sensors which simultaneously measure a physical parameter of interest, subject to a certain probability of sensing error. The sensed information at each of such nodes is channel-encoded and forwarded to a central receiver through parallel independent AWGN channels. In this scenario, several recent contributions have shown that the end-to-end Bit Error Rate (BER) performance can be dramatically improved if the decoders associated to each received signal and the data fusion stage exchange soft information in an iterative Turbo-like fashion. In order to achieve optimum performance, the probability of sensing error must be known (or estimated) at the receiver. In this work we describe a novel method for estimating such sensing error probability by properly weighting likelihoods output from the Soft-Input Soft-Output decoders (SISO), which is shown to outperform other estimation methods based in hard-decision comparisons, specially in the low SNR regime.en
dc.description.statusPeer reviewed
dc.format.extent5
dc.identifier.citationOlabarrieta , I & Del Ser , J 2010 , Enhanced sensing error probability estimation for iterative data fusion in the low SNR regime . in 2010 International ITG Workshop on Smart Antennas, WSA 2010 . , 5456439 , 2010 International ITG Workshop on Smart Antennas, WSA 2010 , pp. 270-274 , 2010 International ITG Workshop on Smart Antennas, WSA 2010 , Bremen , Germany , 23/02/10 . https://doi.org/10.1109/WSA.2010.5456439
dc.identifier.citationconference
dc.identifier.doi10.1109/WSA.2010.5456439
dc.identifier.isbn9781424460700
dc.identifier.urihttps://hdl.handle.net/11556/1515
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=77953063819&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartof2010 International ITG Workshop on Smart Antennas, WSA 2010
dc.relation.ispartofseries2010 International ITG Workshop on Smart Antennas, WSA 2010
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsData fusion
dc.subject.keywordsDistributed sensor network
dc.subject.keywordsIterative decoding
dc.subject.keywordsHardware and Architecture
dc.subject.keywordsElectrical and Electronic Engineering
dc.titleEnhanced sensing error probability estimation for iterative data fusion in the low SNR regimeen
dc.typeconference output
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