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1、AbstractInrecentyears,drivenbytechnologyinnovationandapplicationrequirements,mobilecommunicationtechnologydevelopedrapidly.Wirelessubiquitousnetworksappearedbecauseofthecoexistenceofvariouswirelesstechnologies.Inthisenvironment,usersoftenhavemultipletermi
2、nals.Terminalsusethecooperativecommunicationbetweenthemselvestomeetthedemandoftheuser'sservice.Andthevirtualrestructuringtechnologyarisesatthehistoricmoment.Thetechnologycanimprovethequalityofbusinessservices.Meanwhile,it，sabletomeettheuser'srequirementsf
3、romdifferentaspectsanddifferenthierarchies,thusimprovethequalityofuserexperience(QoE)greatly.ThistopicwillfocusontheQoEevaluationmethodsandoptimizationtheorybasedonvirtualrestructuringinthewirelessubiquitousnetworks,themainworkincludes:Firstly,incombinati
4、onwiththeobjectivefactorsandsubjectivefactorsthatinfluencingQoE,itestablishesamodifiedhierarchyindexsystemofQoEbasedonvirtualrestructuring.Intermsofobjectivefactors,itusesthetraditionalQoEindexsystem.Intermsofsubjectivefactors,itacquiresthesubjectivefacto
5、rsthroughtheuserfeedback.Then,it'smappedtothecorrespondingkeyqualityindicators(KQI)respectively.Secondly,accordingtothemodifiedQoEindexsystem,akindofQoEevaluationmethodbasedonvirtualrestructuringisproposed.Inthefirstassessmentcycle,itobtainstheinitialweig
6、htsofKQIthroughfuzzyanalytichierarchyprocess.Meanwhile,inthesubsequentassessmentcycle,itrealizesthedynamicupdateofKQIweightsbytheuserfeedbacks.Andthesimulationresultsdemonstratetheeffectivenessoftheproposedmethod.Finally,itproposestheMax-QoEoptimizationth
7、eorybasedonresourcesrestructuring.ThetheoryestablishestheQoEoptimizationmodelofdifferentuser9sservice,inthemeantime,itsolvestheproblemthroughtheLinearProgrammingApproach.AndthesimulationresultsshowthattheMax-QoEoptimizationalgorithmcanwellimprovetheuser?s
8、QoE.Keywords:wirelessubiquitousnetworks,virtualrestructuring,QoE,evaluationmethod,optimizationtheory目录1.1研究背景及意义41.2国内外QoE研究现状5QoE的指标体系5QoE的评价方法5QoE的优化方法71.3虚拟重构技术91.3.1基本概念91.3.2应用场景101.4本文创新点131.5论文组织结构13第二章无线泛在网络
