a novel weighted clustering algorithm based on

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1、2010FirstInternationalConferenceonPervasiveComputing,SignalProcessingandApplicationsANovelWeightedClusteringAlgorithmBasedonPowerDistributionforCooperativeCommunicationNetworkNaZhangNingqingLIUWeixiaoMENGQiyueYUDepartmentofCommunicationEngineeringHarbinInstituteofTechnology

2、Harbin,P.R.Chinapingpongq@163.comAbstract—Cooperativecommunicationsiswidelyusedtosharerelativehighaveragetransmitpower.Inthispaper,weproposetheresourcesofdifferentnodes,andachievespatialdiversityanewweightedclusteringalgorithmwhichaddsanewweightgaininmulti-usernetwork.Theno

3、dewhichischosenasfactordecidedbythepowerrewardofthenodes.Theproposedcooperativenode(cluster-head),consumesmoretransmitpoweralgorithmachievesloadbalancingbyspecifyingapre-definedforothernodesthanitself.Becauseofthis,traditionalalgorithmthresholdonthenumberofnodesthatacluster

4、headcanresultsinunevenpowerdistribution.Inthispaper,weproposeahandleideally.Thisensuresthatnoneofthecluster-headsarenewalgorithmcalledweightedclusteringalgorithmbasedonoverloadedatanyinstanceoftime.powerdistribution(PDWCA)tosolvetheproblem.ComparedTheremainderofthepaperisor

5、ganizedasfollows.Sectionwithtraditionalweightedclusteringalgorithm(WCA),theproposedalgorithmaddsanewweightfactordecidedbythe2describesthepreviousworkandsomeconceptions.InSect.3,powerreward,whichevaluatesthepowercontributedtoortheproposedalgorithmisgiven.Theperformanceanalys

6、isisservicebyotherssoastoguaranteeuniformpowerdistribution.evaluatedbycomputersimulationinSect.4.Finally,Sect.4Inthispaper,wealsogiveanewdefinitionofthemeasureofofferssomeconcludingremarks.mobilitywhichismoreclearthanthetraditionalone.II.PRELIMINARYSimulationsresultsshowtha

7、ttheperformancesaresimilartoA.ConceptionsWCAintermsofcluster-headnumberandloadbalancingfactorUsually,avirtualcellconsistsofmanydistributedwireless(LBF);meanwhile,itcanreachmuchbetterimprovementonnodes,andonenodeactsagatewaytothenetwork;mobileaveragetransmitpower.terminaland

8、centralnodeareconnectedusingwirelessrelayKeywords-cooperativecommunications;powerr