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Article: Distributed Clock Parameters Tracking in Wireless Sensor Network

TitleDistributed Clock Parameters Tracking in Wireless Sensor Network
Authors
Issue Date2013
PublisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=7693
Citation
IEEE Transactions on Wireless Communications, 2013, v. 12 n. 12, p. 6464-6475 How to Cite?
AbstractClock parameters (skew and offset) in sensor net- work are inherently time-varying due to imperfect oscillator circuits. This paper develops a distributed Kalman filter for clock parameters tracking. The proposed algorithm only requires each node to exchange limited information with its direct neighbors, thus is energy efficient, scalable with network size, and is robust to changes in network connectivity. A low-complexity distributed algorithm based on Coordinate-Descent with Bootstrap (CD-BS) is also proposed to provide rapid initialization to the tracking algorithm. Simulation results show that the performance of the proposed distributed tracking algorithm maintains long-term clock parameters accuracy close to the Bayesian Cramer-Rao Lower Bound.
Persistent Identifierhttp://hdl.handle.net/10722/199093
ISSN
2015 Impact Factor: 2.925
2015 SCImago Journal Rankings: 2.340
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLuo, Ben_US
dc.contributor.authorWu, YCen_US
dc.date.accessioned2014-07-22T01:02:49Z-
dc.date.available2014-07-22T01:02:49Z-
dc.date.issued2013en_US
dc.identifier.citationIEEE Transactions on Wireless Communications, 2013, v. 12 n. 12, p. 6464-6475en_US
dc.identifier.issn1536-1276-
dc.identifier.urihttp://hdl.handle.net/10722/199093-
dc.description.abstractClock parameters (skew and offset) in sensor net- work are inherently time-varying due to imperfect oscillator circuits. This paper develops a distributed Kalman filter for clock parameters tracking. The proposed algorithm only requires each node to exchange limited information with its direct neighbors, thus is energy efficient, scalable with network size, and is robust to changes in network connectivity. A low-complexity distributed algorithm based on Coordinate-Descent with Bootstrap (CD-BS) is also proposed to provide rapid initialization to the tracking algorithm. Simulation results show that the performance of the proposed distributed tracking algorithm maintains long-term clock parameters accuracy close to the Bayesian Cramer-Rao Lower Bound.en_US
dc.languageengen_US
dc.publisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=7693-
dc.relation.ispartofIEEE Transactions on Wireless Communicationsen_US
dc.rightsIEEE Transactions on Wireless Communications. Copyright © IEEE.-
dc.rights©2013 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.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleDistributed Clock Parameters Tracking in Wireless Sensor Networken_US
dc.typeArticleen_US
dc.identifier.emailLuo, B: luobin@eee.hku.hken_US
dc.identifier.emailWu, YC: ycwu@eee.hku.hk-
dc.identifier.authorityWu, YC=rp00195en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/TWC.2013.103013.130811-
dc.identifier.scopuseid_2-s2.0-84891558471-
dc.identifier.hkuros231474en_US
dc.identifier.volume12en_US
dc.identifier.issue12-
dc.identifier.spage6464en_US
dc.identifier.epage6475en_US
dc.identifier.isiWOS:000328966200042-
dc.publisher.placeUnited States-

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