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Article: Distributed Clock Parameters Tracking in Wireless Sensor Network
Title | Distributed Clock Parameters Tracking in Wireless Sensor Network |
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Authors | |
Keywords | Bayesian cramer-rao lower bound Distributed clock synchronization Distributed kalman filter Wireless sensor networks (WSNs) |
Issue Date | 2013 |
Publisher | IEEE. 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? |
Abstract | Clock 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 Identifier | http://hdl.handle.net/10722/199093 |
ISSN | 2023 Impact Factor: 8.9 2023 SCImago Journal Rankings: 5.371 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Luo, B | en_US |
dc.contributor.author | Wu, YC | en_US |
dc.date.accessioned | 2014-07-22T01:02:49Z | - |
dc.date.available | 2014-07-22T01:02:49Z | - |
dc.date.issued | 2013 | en_US |
dc.identifier.citation | IEEE Transactions on Wireless Communications, 2013, v. 12 n. 12, p. 6464-6475 | en_US |
dc.identifier.issn | 1536-1276 | - |
dc.identifier.uri | http://hdl.handle.net/10722/199093 | - |
dc.description.abstract | Clock 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.language | eng | en_US |
dc.publisher | IEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=7693 | - |
dc.relation.ispartof | IEEE Transactions on Wireless Communications | en_US |
dc.subject | Bayesian cramer-rao lower bound | - |
dc.subject | Distributed clock synchronization | - |
dc.subject | Distributed kalman filter | - |
dc.subject | Wireless sensor networks (WSNs) | - |
dc.title | Distributed Clock Parameters Tracking in Wireless Sensor Network | en_US |
dc.type | Article | en_US |
dc.identifier.email | Luo, B: luobin@eee.hku.hk | en_US |
dc.identifier.email | Wu, YC: ycwu@eee.hku.hk | - |
dc.identifier.authority | Wu, YC=rp00195 | en_US |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1109/TWC.2013.103013.130811 | - |
dc.identifier.scopus | eid_2-s2.0-84891558471 | - |
dc.identifier.hkuros | 231474 | en_US |
dc.identifier.volume | 12 | en_US |
dc.identifier.issue | 12 | - |
dc.identifier.spage | 6464 | en_US |
dc.identifier.epage | 6475 | en_US |
dc.identifier.isi | WOS:000328966200042 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 1536-1276 | - |