异构无线网络中的智能资源管理的研究

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1、ABSTRACTAremarkablecharacteristicofthefuturewirelessnetworkistheintegrationofheterogeneouswirelessnetworks.Differentwirelessaccesstechnologiesexhibitdifferentfeaturesoncoveragearea,mobilitysupport,systemcapacityandservicequality.Howtoeffectivelymanageandutilizetheresourcesofheterogeneouswirelessne

2、twork,anddigoutitspotentialperformance,inordertoprovideuserswithsatisfyingservice,isaimportantsubjectintheresearchofheterogeneouswirelessnetwork.Firstlythecurrentstudyofheterogeneouswirelessnetworkisintroducedinthispaper.Basedontheexistingmodels,heterogeneousnetworkstructuresindifferentcommunicati

3、onenvironmentareanalyzed.Thenthecurrentpopularresourcemanagementframeworksaredescribed.Thethesisfocusesonaccessselectionandloadbalancingwhichareintheareaofheterogeneouswirelessresourcemanagement.Firstlyanaccessselectionalgorithmwhichisbasedonparticleswarmoptimizationisproposed.Theproposedalgorithm

4、keepsfastconvergencespeedandstrongadaptabilityfeathersoftheparticleswarmoptimization.Inaddition,itupdatesanelitesettoachievemulti-objectivedecision-making.Meanwhile,amutationoperatorisadoptedtomakethealgorithmconvergetotheglobaloptimal.Simulationresultsshowthatcomparedtothesingle-objectivealgorith

5、m,theproposedaccessselectionalgorithmcanobtainmorecombinationperformanceandtakeboththenetworkstateanduserpreferencesintoaccount.Followedbyaloadbalancingpolicybasedongeneticalgorithmisproposedwhichutilizetheadaptivityandself-learningofgeneticalgorithm.Theproposedalgorithmappliesthreemechanismstosol

6、vecongestiononthetargetofservicequality.Simulationresultsshowthattheproposedalgorithmisabletoguaranteethesatisfactionofuserswhilereducingtheblockingprobabilityandincreasingthenumberofservinguserseffectively.Keyword:HeterogeneousWirelessNetworkWirelessResourceManagementAccessSelectionLoadBalancingP

7、articleSwarmOptimizationGeneticAlgorithm目录第一章绪论.....................................................................................................................11.1课题研究背景和意义...................................