硕士论文上海交通大学-基于全ip的异构网络中终端垂直切换技术

上海交通大学硕士学位论文基于全IP的异构网络中终端垂直切换技术研究姓名：谢宾申请学位级别：硕士专业：通信与信息系统指导教师：徐昌庆20090101IIPGSMWiFiWCDMAWiMAXNextGenerationNetworkNGNIPIP-basedMultimediaSystemIMSIPQoSQoSFuzzyTheoryAnaliticalHirachyProcessAHPGreyRelationalAnalysisGRAQoSQoSGSMWiFiOPNETMatlabLinuxAbstractIITheResearchonVerticalHandoffAlgorithmoftheTerminalsinIP-basedHeterogenousNetworksABSTRACTMoreandmorewirelessaccesstechnologieshaveemergednowadays,suchasGSM,WiFi,WCDMAandWiMAX,providingcustomerswithplentyofaccessmodesandservices.Thenextgenerationnetwork(NGN)isfocusingonestablishinganewIPBasedMulti-mediaSubsystem(IMS)whichcanintegratesdifferentkindsofnetworksintoIPbasednetwork,providingcustomerswithshareddata,voiceandmulti-mediaservicesbasedonpacketswitching.Inordertoutilizeallthesenetworkresources,intelligentmobileterminationsneedaneffectiveverticalhandoffalgorithmtoswitchandregistertonewnetworkquicklywhencrossingnetworkboundary.Sothisthesiswillpresentanetworkindependentverticalhandoffalgorithm,whichcanbeextendedtonewtypeofnetworkconveniently.Powerconsumptionistheprimeproblemtobesolvedinverticalhandoff.Thisthesispresentsanactiveapplication-orientedhandoffalgorithm,verticalhandoffistriggeredonlywhencurrentnetworkcan’tprovideapplicaitonswithQoSneeded,thusgreatlyreducespowerconsumptionbyunnecessaryhandoff.Asdifferentnetworkshavedifferentarchitectures,accesstechnologiesandQoSindicators,traditionalhandoffalgorithmbasedonreceivedsignalstrengthisnolongersuitable,howtoselectthebestsuitablenetworkaccordingtodifferentQoSindifferentnetworksisthekeyprobleminverticalhandoff.SoanetworkselectionalgorithmbasedonFuzzyTheory,AnalyticalHirachyProcess(AHP)andGreyRelationalAnalysis(GRA)isproposedtohelptermincalsselectthebestnetworkaccordingtoQosfactors.Besides,oneofthekeyobjectivesinverticalhandoffistoreducehandoffdelay,sothisthesispresentsanactivehandoffpredictionmechanism.Withthehelpofhandoffprediction,terminalscandynamicallydetecttheQoSofcurrentnetworkandmakepredictionforverticalhandoff.Inthesecondhalfpartofthisthesis,anOPNETandMatlabsimulationplatformbasedonGSMandWiFiisconstructed,andtheproposedverticalhandoffalgorithmisimplementedunderLinux.Thesimulationresultsdemonstratethatthenewalgorithmbehavesbetterthantraditionalalgorithminsupportingmultipletasks,reducingpowerconsumptionandhandoffdelay.KEYWORDS:HeterogeniousNetwork;VerticalHandoff;AHP;GRA;FuzzyTheoryIIIAGCHAccessGrantChannelAHPAnalyticalHierachyProcessAPAccessPointAUCAuthenticationCenterBCCHBroadcastControlChannelBCHBroadcastChannelBSCBaseStatioinControllerBSSBaseStationSystemBSSIDBasicServiceSetIdentifierBTSBaseTransceiverStationCCCHCommonControlChannelCCHControlChannelCEPTCommitteeofEuropeanPosts&TelephonesCIConsistencyIndexCRRandomConformanceRateCSMA/CDCarrierSenseMultipleAccesswithCollisionDetectionCSMA/CACarrierSenseMultipleAccesswithCollisionAvoidanceCTSCleartoSendDADestinationAddressDCCHDedicatedControlChannelDSDistributionSystemDSAPDestinationServiceAccesspointDSSSDirectSequenceSpreadSpectrumESSExtendedServiceSetETSIEuropeanTelecommumicationsStandardsInstituteFAForeignAgentFACCHFastAssociatedControlChannelFCCHFrequencyCorrectionChannelFHSSFrequencyHoppingSpreadSpectrumFNFuzzyNumberFSFuzzySetGPRSGeneralPacketRadioServiceGRAGreyRelationalAnalysisGRCGreyRelationalCoefficientGSMGlobalSystemforMobileCommunicationsHAHomeAgentHIHostIdentityHIPHostIdentityProtocolHITHostIdentityTagHLRHomeLocationRegisterIVICIInterfaceControlInformationLLCLogicLinkControlLSILocalScopeIdentityMACMediaAccessControlMIPMobileInternetProtocolMNMobileNodeMSMobileStationMSCMobileSwitchingCenterNSSNetworkSubSystemOFDMOrthogonalFrequencyDivisionMultiplexingPCHPagingChannelPIDPacketIdentifierQoSQualityofServiceRAReceiverAddressRACHRandomAccessChannelRIRandomIndexRTSRequesttoSendSASourceAddressSACCHSlowAssociatedControlChannelSCHSynchronizationChannelSDCCHStand-aloneDedicatedControlChannelSIDSessionIdentifierSSAPSouceServiceAccessPointTATransmitterAddressTACSTotalAccessCommunicationSystemTCHTrafficChannelVLRVisitingLocationRegisterWCDMAWidebandCodeDevisionMultipleAccessWiFiWirelessFidelity20092220092220092211.1863QoSIPIPIP21.2M.StemmR.H.Katz[1]1-11-1M.StemmandR.H.KatzFiture1-1HeterogeniousNetworkArchitectureproposedbyM.StemmandR.H.Katz[2]HomeAgentHAHA[3]UMTSWLANIPv6UMTS802.11WLAN[4]GSM/GPRSWLAN[5]802.11WLAN3G[6]ActiveApplicationOrientedAAO3[7]QoSQoS1-21-2Fiture1-2VerticalHandoffProcedureinMultipleApplications[8]IPWLAN3G/UMTSIPv6QoS[9]1.31863“”4QoS2GSMWiFiOPNETmatlab3LinuxQtPCLinuxQt4IPv6HIPHIPHIPGSMWiFiGSMWiFiMACGSMWiFiOPNETOPNET“”OPNETGSMWiFiMatlabLinuxQtC++IDIP5[7]QoSReceiveSignalStrenghRSS[10]AHPGRA[7]QoSQoSQoS2-1123n2-1Fiture2-1VerticalHandoffArchitecture62.12.1.1AnalyticalHirachyProcessAHP[11]AHP2070·ThomasL.SattyAHPAHPAHP2.1.22-2AHPFigure2-2AHPProcedureAHP2-27AHPn12,,nOOO12,,n=####12[,,]Tn=*||||=ikkjijbbb×=(2-1)*WAnnA2.1.312-3821n21m2-3Figure2-3ASimpleHierachyArchitectureforAHP2-421n21m1s2-4Figure2-4AHierachyArchitecturewithMul