Fault-Tolerant Implementation of a Distributed MLE-based Time Synchronization Protocol for Wireless Sensor Networks

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dc.contributor.authorDjenouri, Djamel
dc.contributor.authorDoudou, Messaoud
dc.contributor.authorMerabtine, Nassima
dc.contributor.authorMekahlia, Fatma Zohra
dc.date.accessioned2013-11-20T14:49:21Z
dc.date.available2013-11-20T14:49:21Z
dc.date.issued2012
dc.description.abstractThis paper describes the implementation and evaluation of R4Syn protocol on MICAz platform and TinyOS operating system. The contribution is two folds. First, the implementation uses thorough maximum-likelihood estimators (MLE) in the joint offset/skew model, while all similar MLE-based estimators are merely evaluated with theoretical and numerical analysis thus far, and empirical solutions use simple computation estimators, such as offset-only models, or linear regression for skew estimation. Difficulties that has been encountered and overcome are reported in this paper. The second contribution is to consider fault-tolerance, an aspect that has been completely abstracted in previous works. The implementation assures correct behavior despite nodes failure or packet loss, as demonstrated by the experiments. Experimental results also demonstrate microsecond-level precision and long-term validity of the estimators in the joint skew/offset model.fr_FR
dc.identifier.isrnCERIST-DTISI/RR--12-000000040--dzfr_FR
dc.identifier.urihttp://dl.cerist.dz/handle/CERIST/262
dc.publisherCERIST
dc.relation.ispartofRapports de recherche internes
dc.relation.ispartofseriesRapports de recherche internes
dc.relation.placeAlger
dc.subjectWireless Sensor Networksfr_FR
dc.subjectTime synchronizationfr_FR
dc.subjectImplementationfr_FR
dc.subjectTinyOSfr_FR
dc.subjectMicaZfr_FR
dc.titleFault-Tolerant Implementation of a Distributed MLE-based Time Synchronization Protocol for Wireless Sensor Networksfr_FR
dc.typeTechnical Report
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