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ID:33008308
大小:2.22 MB
页数:62页
时间:2019-02-19
《基于dht的无线传感器网络路由协议分析》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、ABSTRACTGreenhomeisoneoftheapplicationsofmodemagriculture,ituseswiredcommunicationinenvironmentalmonitoring.Althoughsignaltransmissioninwiredcommunicationisrelativelystable,complexwiringandhighercostsisnotgoodforfurtherenhanceinautomationandintelligenceofthegreenhouse.Forlarge-scalewirelesssensorn
2、etworksusedingreenhouse,flatroutingprotocolisclearlynotgoodfortheexpansionofthenetworkanduseofnoderesources,andhierarchicalroutingmethodisstillflawedinclusterheadselection、optimizationoftheclusterheadanddatatransmission,andnetworkswillconsumelargeamountsofenergyifcluster11eadiSselectedbyround.Thee
3、nergyofnodesinwirelesssensornetworksisverylimited.Hierarchicalroutingprotocolgreatlyimprovesthescalabilityoftheentiresystemandextendsthenetworklifetimebyassigningspecificworktotheclusterhead.Inthispaper,currentandcommonlyusedclusteredroutingalgorithmissummarized,andtheadvantagesanddisadvantagesoft
4、hesealgorithmsisalsoorganized;inclusteringprocess,theremainingenergyandrelativedensityofthenodearefullyconsidered,thenimprovedk-meansalgorithmisusedforoptimizationofclusteringresults;clusterheadCanpassdatatothebasestationinmulti—hopmannerthroughaggregationtree;itavoidsenergycostsinfrequentclusteri
5、ngbytheupdateofclusterheadintheprocessofdatatransmission;thispaperintroducesmoreefficientdatalookupsmanners、析ththeadvantagesofDHT.Inordertoverifytheperformanceofproposedalgorithm,thispaperdoessomesimulationexperimentsonPeerSimsimulationplatform,thenitiscompared谢mtheLEACHprotocol,LEACH-Dprotocoland
6、EquitableLEACH-Eprotocolthroughavarietyofscenesimulationtest.First,itsetsnetworksize嬲100m×lOOm,thenincreasethedensityofnodes,andfoundthatwhenthenumberofnodesisgreaterthan15,theproposedalgorithmcaileffectivelysaveenergyofnodesandextendthenetworklifetime,evenwhenthenetworkrunroundis200,theproposedal
7、gorithmstillhasbetterroutingperformance;Second,thenodedensityremainsthesame,thenitincreasesthesizeofthenetworkfrom100m×100m,theproposedalgorithmcalleffectivelysaveenergy.ofnodes、extendnetworklifetimeandreducetheI
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