基于WSN的空洞路由算法研究

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1、AbstractWirelesssensornetworks(WSN)aremulti．hopself-organizednetworksystemsinwhichmassivearetocommunicatewitheachother．Itspurpose1Stosensornodesrandomlydeployedtoperceive，collectionandprocessingnetworkcoverageareabycognitiveobjectincooperationmeinfomlation，andsendingt

2、heobserver．However,insomewirelesssensornetworkspracticalenvironments，theterrain，andtheenvironmentfactors，sensornodeenergylimitedandusuallydonotbeaddedwhichleadto”routingholes”phenomenon．Thus，howtosuccessfullyresolved”routinghole”problem，extendWSN’Slifetimeandensurethe

3、qualityofservice(QoS)inWSNistheresearchfoCUSofwirelesssensornetwork．Inthispaper,wethroughtothewirelesssensornetworkroutingprotocoltoclassification，researchandcontrast，especiallyfocusingontheanalysisofthegeographicallocationinformationroutingprotoc01．Onthisbasis，aimata

4、ddressingtheproblemscausedby”routingholes”and‘‘qualityofservice”，Weproposedthreemutingalgorithms，whicharelistedasfollows：(1)ThereliabilityassuranceoftheQoSinwirelesssensornetworkroutingprotocolissomeconcreteapplicationsoftheprerequisite，Basedonthis，abasedonMobile—Agen

5、tdistributedQoSmulticastroutingalgorithminWAN(AQRA-W)wasproposed．AQRA-WmakeuseoftwotypesofMobile—Agentcommunicationbetweencollaboration，ThusseektosatisfiedthereliabilityoftheQoSrouting，Throughtheroutingnodeflexibleupdatesstrategygetthebestpath，effectivelyavoidthegener

6、ationofcircuit,guaranteetheSUCCESSoftheroutingestablished．(2)Geographicrouting(Georouting)withgreedyforwardingisattractiveforWSN．but”routingholes”innetworksoftencauseroutingfailures．Aimingatthissituation，weproposeaGreedyGeoroutingAlgorithmwithConductedVoid-bypassPaths

7、(Conby)．Formostroutingholealgorithmsadoptsamestrategyafterencounterroutingholenode，Differentwiththem，Conbyreachesaroutingholenodeinthefirsttime，itconductsoneortwoshortestpathswhichcouldgetoutofthehole．Thesubsequentpacketforwardingswillbeawareofthevoidbeforereachingits

8、”routingholes”node，consequentlyreducethenumberofhopcount，savingalotofunnecessaryenergyconsumption．Topreventtheexhaustingofno