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1、IntegratedServicesPacketNetworkswithMobileHosts:ArchitectureandPerformanceAnupK.Talukdar,B.R.BadrinathArupAcharyaDepartmentofComputerScienceC&CResearchLabsRutgersUniversityNECUSANewBrunswick,NJ08903Princeton,NJ08540ftalukdar@paul,badri@csg.rutgers.
2、eduarup@ccrl.nj.nec.comAbstractresearchintheareaofMobileComputingtoprovidemobileusersaccesstoaninternetwork.Theresearch,Thispaperconsidersthesupportofreal-timeap-sofar,hasfocussedontheproblemofmaintainingcon-plicationstomobilehostsinanIntegratedServi
3、cesnectivityatthenetworkandtransportlayerinspitePacketNetwork.Inthecurrentlyexistingarchitec-ofthemobilityofthemobilehosts[12,4,3].tures,theserviceguaranteesprovidedtothemobilehostsaremobilitydependent,i.e.mobilehostsexpe-Also,therehavebeenseveralpro
4、posalsforsupport-riencewidevariationintheQualityofServiceandingreal-timeapplicationsinanIntegratedServicesoftenservicedisruptionwhenhostsmovefromonelo-PacketNetwork(ISPN).Typicalapplicationsthatre-cationtoanother.Thenetworkperformancedegradesquirerea
5、l-timeservicesincludeaudiolibrary,imagesigni cantlywhenmobilehostsareprovidedwithmo-browsing,videoconferencingandvideo-on-demand.bilityindependentserviceguarantees.InthispaperweThesemultimediaapplicationsrequireabound,whichhaveproposedaservicemodelfo
6、rmobilehoststhatmaybeabsoluteorstatistical,onthedeliverydelayofcansupportadaptiveapplicationswhichcanwithstandeachpacket.Clarketal.[5]havedescribedanarchi-servicedegradationanddisruption,aswellasapplica-tectureforanISPNthatsupportsreal-timetrac.Inti
7、onswhichrequiremobilityindependentserviceguar-thisarchitecturetheyhavedescribedaservicemodelantees.Wedescribeanadmissioncontrolschemeandforreal-timetracwithtwoserviceclasses,guaran-areservationprotocolforimplementingthisserviceteedandpredictive.Jami
8、netal.[7]havedescribedamodelandevaluateitsperformancebysimulationex-schemetoimplementtheservicemodeldescribedinperiments.Simulationresultsshowthat,ifsucient[5].degreeofmultiplexingofthemobilitydependentandAsportablecomputersbecomemorepowerfulandinde
