File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Fully distributed Clock Synchronization in Wireless Sensor Networks Under Exponential Delays

TitleFully distributed Clock Synchronization in Wireless Sensor Networks Under Exponential Delays
Authors
Issue Date2016
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/sigpro
Citation
Signal Processing, 2016, v. 125, p. 261-273 How to Cite?
AbstractIn this paper, we study the global clock synchronization problem for wireless sensor networks under unknown exponential delays in the two-way message exchange mechanism. The joint maximum likelihood estimator of clock offsets, clock skews and fixed delays for the network is formulated as a linear programming (LP) problem. Then, based on the alternating direction method of multipliers (ADMM), we propose a fully distributed synchronization algorithm which has low communication overhead and computation cost. Simulation results show that the proposed algorithm achieves better accuracy than consensus algorithm and the distributed least squares algorithm, and can always converge to the centralized optimal solution.
Persistent Identifierhttp://hdl.handle.net/10722/231938
ISSN
2015 Impact Factor: 2.063
2015 SCImago Journal Rankings: 1.119

 

DC FieldValueLanguage
dc.contributor.authorLUO, B-
dc.contributor.authorCHENG, L-
dc.contributor.authorWu, YC-
dc.date.accessioned2016-09-20T05:26:30Z-
dc.date.available2016-09-20T05:26:30Z-
dc.date.issued2016-
dc.identifier.citationSignal Processing, 2016, v. 125, p. 261-273-
dc.identifier.issn0165-1684-
dc.identifier.urihttp://hdl.handle.net/10722/231938-
dc.description.abstractIn this paper, we study the global clock synchronization problem for wireless sensor networks under unknown exponential delays in the two-way message exchange mechanism. The joint maximum likelihood estimator of clock offsets, clock skews and fixed delays for the network is formulated as a linear programming (LP) problem. Then, based on the alternating direction method of multipliers (ADMM), we propose a fully distributed synchronization algorithm which has low communication overhead and computation cost. Simulation results show that the proposed algorithm achieves better accuracy than consensus algorithm and the distributed least squares algorithm, and can always converge to the centralized optimal solution.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/sigpro-
dc.relation.ispartofSignal Processing-
dc.rightsPosting accepted manuscript (postprint): © <year>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/-
dc.titleFully distributed Clock Synchronization in Wireless Sensor Networks Under Exponential Delays-
dc.typeArticle-
dc.identifier.emailWu, YC: ycwu@eee.hku.hk-
dc.identifier.authorityWu, YC=rp00195-
dc.identifier.doi10.1016/j.sigpro.2016.02.007-
dc.identifier.hkuros264930-
dc.identifier.volume125-
dc.identifier.spage261-
dc.identifier.epage273-
dc.publisher.placeNetherlands-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats