MLE for Receiver-to-Receiver Time Synchronization in Wireless Networks with Exponential Distributed Delays

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dc.contributor.authorDjenouri, Djamel
dc.date.accessioned2014-02-02T09:21:58Z
dc.date.available2014-02-02T09:21:58Z
dc.date.issued2014-01-30
dc.description.abstractReceiver-to-receivertimesynchronizationinwirelessnetworksisconsidered,andappropriatemaximum-likelihoodestimators(MLE)forenvironmentswithexponentialdistrustedreceptiondelaysareproposed.Inthereceiver-to-receiversyn-chronizationapproach,timeatreceiversshouldbedirectlyrelatedtooneanotherwithoutrefereingtothesender(reference),whichpermitstoeliminatethesender’suncertaintyfromthevariabledelays(timecritical-path).Themodelsandestimatorsproposedforthesender-to-receiverapproacharethusinappro-priateforthereceiver-to-receiverone.Amodelthataccuratelyreflectstherelativefeatureoftheconsideredapproachandeliminatesthesenders’suncertaintyisused,wheretimestampsatthereceiversaredirectlyrelatedwithoutrefereingtothesender’stimeortimestamps.Bydirectlyrelatingtimeattworeceiverswithidenticalexponentialreceptiondelay,,ityieldsadistributionasthedifferencebetweenthetwodelays.TheyusetheloglikelihoodfunctionofthelatterandtheMLmethod,theoffsetestimatorhasbeenanalyticallyderived,wherealinearprogramisgivenforthejointoffset/skewmodel.Theaccuracyoftheproposedestimatorshasbeennumericallyanalyzedbysimulation.Resultsshowhighprecisionoftheproposedestimators,whichcanbeintegratedwithanyreceiver-to-receiversynchronizationprotocol.fr_FR
dc.identifier.isrnCERIST-DTISI/RR--14-00000004--dz
dc.identifier.urihttp://dl.cerist.dz/handle/CERIST/584
dc.publisherCERIST
dc.relation.ispartofRapports de recherche internes
dc.relation.placeAlger
dc.structureRéseaux de Capteurs et Applicationsfr_FR
dc.subjecttime synchronizationfr_FR
dc.subjectwireless sensor networkfr_FR
dc.subjectestimatorsfr_FR
dc.titleMLE for Receiver-to-Receiver Time Synchronization in Wireless Networks with Exponential Distributed Delaysfr_FR
dc.typeTechnical Report
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