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Conference Paper: Joint localization and time synchronization in wireless sensor networks with anchor uncertainties

TitleJoint localization and time synchronization in wireless sensor networks with anchor uncertainties
Authors
KeywordsAnchor locations
Cramer-rao lower bound
Energy saving
Energy-constrained
Generalized total least squares
Issue Date2009
PublisherIEEE Communications Society.
Citation
The IEEE Conference on Wireless Communications and Networking (WCNC 2009), Budapest, Hungary, 5-8 April 2009. In Proceedings of IEEE WCNC, 2009, p. 1-5 How to Cite?
AbstractAlthough localization and synchronization share many aspects in common, they are traditionally treated separately. In this paper, we present a unified framework to jointly solve these two problems at the same time. The joint approach is attractive because it can solve both localization and synchronization using the same set of message exchanges. This is extremely important for energy saving, especially for the energy constrained wireless sensor networks. Furthermore, since the accuracy of localization and synchronization is very sensitive to the accuracy of anchor locations and timings, the joint localization and synchronization problem with inaccurate anchor is considered in this paper. A novel generalized total least squares (GTLS) based method is proposed and the Cramer-Rao lower bound (CRLB) for the joint localization and time synchronization is derived. Simulation results show that the mean square error performances of the proposed estimator can attain the CRLB. © 2009 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/62029
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorZheng, Jen_HK
dc.contributor.authorWu, YCen_HK
dc.date.accessioned2010-07-13T03:52:26Z-
dc.date.available2010-07-13T03:52:26Z-
dc.date.issued2009en_HK
dc.identifier.citationThe IEEE Conference on Wireless Communications and Networking (WCNC 2009), Budapest, Hungary, 5-8 April 2009. In Proceedings of IEEE WCNC, 2009, p. 1-5en_HK
dc.identifier.issn1525-3511en_HK
dc.identifier.urihttp://hdl.handle.net/10722/62029-
dc.description.abstractAlthough localization and synchronization share many aspects in common, they are traditionally treated separately. In this paper, we present a unified framework to jointly solve these two problems at the same time. The joint approach is attractive because it can solve both localization and synchronization using the same set of message exchanges. This is extremely important for energy saving, especially for the energy constrained wireless sensor networks. Furthermore, since the accuracy of localization and synchronization is very sensitive to the accuracy of anchor locations and timings, the joint localization and synchronization problem with inaccurate anchor is considered in this paper. A novel generalized total least squares (GTLS) based method is proposed and the Cramer-Rao lower bound (CRLB) for the joint localization and time synchronization is derived. Simulation results show that the mean square error performances of the proposed estimator can attain the CRLB. © 2009 IEEE.en_HK
dc.languageengen_HK
dc.publisherIEEE Communications Society.-
dc.relation.ispartofProceedings of the IEEE Wireless Communications and Networking Conference, WCNC 2009en_HK
dc.rightsIEEE Wireless Communications and Networking Conference. Proceedings. Copyright © IEEE Communications Society.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2009 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.subjectAnchor locations-
dc.subjectCramer-rao lower bound-
dc.subjectEnergy saving-
dc.subjectEnergy-constrained-
dc.subjectGeneralized total least squares-
dc.titleJoint localization and time synchronization in wireless sensor networks with anchor uncertaintiesen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1525-3511&volume=&spage=1&epage=5&date=2009&atitle=Joint+localization+and+time+synchronization+in+wireless+sensor+networks+with+anchor+uncertainties-
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/WCNC.2009.4917771en_HK
dc.identifier.scopuseid_2-s2.0-70349171955en_HK
dc.identifier.hkuros160155en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70349171955&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage1-
dc.identifier.epage5-
dc.publisher.placeUnited Statesen_HK
dc.description.otherThe IEEE Conference on Wireless Communications and Networking (WCNC 2009), Budapest, Hungary, 5-8 April 2009. In Proceedings of IEEE WCNC, 2009, p. 1-5-
dc.identifier.scopusauthoridZheng, J=36627820800en_HK
dc.identifier.scopusauthoridWu, YC=7406894786en_HK

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