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Conference Paper: Localization of wireless sensor nodes with erroneous anchors via EM algorithm

TitleLocalization of wireless sensor nodes with erroneous anchors via EM algorithm
Authors
Leng, MWu, YC
KeywordsEm algorithms
Estimation errors
Observation errors
Research areas
Robust least squares
Issue Date2010
PublisherIEEE. The Journal's web site is located at http://www.ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000308
Citation
The 2010 IEEE Global Telecommunications Conference (GLOBECOM 2010), Miami, FL., 6-10 December 2010. In Globecom. IEEE Conference and Exhibition, 2010, p. 1-5 How to Cite?
DOI: http://dx.doi.org/10.1109/GLOCOM.2010.5683734
AbstractFinding locations of the sensor nodes in Wireless Sensor Network has been an active research area in recent years. One important category of approaches uses distance measurements between anchors and sensors to localize the unknown node. However, most approaches assume that the anchor positions are perfectly known, while in practice the anchor positions may not be accurate due to estimation errors as well as observation errors. In this paper, we study the localization of wireless sensor node with erroneous anchors, and propose an EM estimator which iteratively refines the anchor positions and estimates the sensor location. Simulation results shows that the EM estimator converges in a few iterations and outperforms the existing robust least squares algorithm. ©2010 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/134516
ISSN
1930-529X
ISI Accession Number ID
WOS:000287977403083
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorLeng, Men_HK
dc.contributor.authorWu, YCen_HK
dc.date.accessioned2011-06-17T09:27:02Z-
dc.date.available2011-06-17T09:27:02Z-
dc.date.issued2010en_HK
dc.identifier.citationThe 2010 IEEE Global Telecommunications Conference (GLOBECOM 2010), Miami, FL., 6-10 December 2010. In Globecom. IEEE Conference and Exhibition, 2010, p. 1-5en_HK
dc.identifier.issn1930-529X-
dc.identifier.urihttp://hdl.handle.net/10722/134516-
dc.description.abstractFinding locations of the sensor nodes in Wireless Sensor Network has been an active research area in recent years. One important category of approaches uses distance measurements between anchors and sensors to localize the unknown node. However, most approaches assume that the anchor positions are perfectly known, while in practice the anchor positions may not be accurate due to estimation errors as well as observation errors. In this paper, we study the localization of wireless sensor node with erroneous anchors, and propose an EM estimator which iteratively refines the anchor positions and estimates the sensor location. Simulation results shows that the EM estimator converges in a few iterations and outperforms the existing robust least squares algorithm. ©2010 IEEE.en_HK
dc.languageengen_US
dc.publisherIEEE. The Journal's web site is located at http://www.ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000308-
dc.relation.ispartofGlobecom. IEEE Conference and Exhibitionen_HK
dc.rights©2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.-
dc.subjectEm algorithms-
dc.subjectEstimation errors-
dc.subjectObservation errors-
dc.subjectResearch areas-
dc.subjectRobust least squares-
dc.titleLocalization of wireless sensor nodes with erroneous anchors via EM algorithmen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailWu, YC:ycwu@eee.hku.hken_HK
dc.identifier.authorityWu, YC=rp00195en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/GLOCOM.2010.5683734en_HK
dc.identifier.scopuseid_2-s2.0-79551629905en_HK
dc.identifier.hkuros185490en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79551629905&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage1-
dc.identifier.epage5-
dc.identifier.isiWOS:000287977403083-
dc.description.otherThe 2010 IEEE Global Telecommunications Conference (GLOBECOM 2010), Miami, FL., 6-10 December 2010. In Globecom. IEEE Conference and Exhibition, 2010, p. 1-5-
dc.identifier.scopusauthoridLeng, M=34881982000en_HK
dc.identifier.scopusauthoridWu, YC=7406894786en_HK
dc.identifier.issnl1930-529X-

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