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1、TowardsHeterogeneousNetworkConvergence:PoliciesandMiddlewareArchitectureforEf?cientFlowAssignment,RateAllocationandRateControlfor?MultimediaApplicationsJatinderPalSinghTansuAlpcanXiaoqingZhuDeutscheTelekomAG,DeutscheTelekomAG,InformationSystemsLaboratorie
2、sLaboratoriesLaboratoryErnst-Reuter-Platz7Ernst-Reuter-Platz7StanfordUniversity10587,Berlin,Germany10587,Berlin,GermanyStanford,CA94305jatinder.singh@telekom.detansu.alpcan@telekom.dezhuxq@stanford.eduPiyushAgrawalDepartmentofComputerScienceandEngineering
3、IndianInstituteofTechnologyKanpur,Indiapiyushag@iitk.ac.inABSTRACTSystems;C.2.1[Computer-CommunicationNetworks]:NetworkArchitectureandDesignTheconvergenceinaccessnetworksbringsforththechal-lengeofresourceallocationforapplicationswithvaryingutilitiesoverne
4、tworkswithtime-varyingandheterogeneousGeneralTermscharacteristics.OwingtoaneverincreasingdemandandDesign,Algorithmspopularity,multimediaapplicationshavebeenakeydriv-ingforcebehindthee?ortstargetedtowardsarchitectures,1.INTRODUCTIONindustrialstandards,andp
5、olicesforconvergence.Multime-diaapplicationsuseprotocolsandtransportdynamicsthatVariousdevelopmentsoverthepastdecadehavecontributedconstrainthemannerinwhichtheseapplicationscanutilizetoanincreasingdrivetowardsconvergence.Firstly,thereaccessnetworks.Inthis
6、work,weproposemiddlewarear-hasbeengrowthandevolutionofseveralaccesstechnologieschitectureandpoliciesthattargetoptimalrateallocationthatarediverseinprovisioneddatarates,coverageranges,formultimediaapplicationsbymonitoringandstochasti-andthenatureofsupporte
7、dservices.The?xed-linetech-callymodelingthevariationincharacteristicsoftheaccessnologies(DSL,cabelmodems,LANsetc.)havecontinuednetworks,usingtheutilitiesofthemediaapplicationwhentoprovideInternetaccessinavarietyofsettingsincludingknown,andaccountingforthe
8、constraintsimposedbyap-residentialareas.Whilethecellularinfrastructurehastradi-plicationspeci?ctransportmechanisms.Theproposedmea-tionallycateredtovoiceservices,ithasalsobeenprovidingsuresleverageouroptimalratealloc