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1、Bandwidth-EfficientContinuousMediaStreamingThroughOptimalMultiplexingWeiZhaoSatishK.TripathiMobileComput,inga.ndMultimediaLabBournsCollegeofEngineeringDepartmentofComputerScienceUniversityofCaliforniaTJniversityofMarylandRiverside,CA92521-0425CollegePaak,MD20742tr
2、ipathi@engr.ucr.eduzwQcs.umd.eduAbstractronmentswithfinitebandwidthresources,improvingthebandwidthefficiencyisthekey.Maximizingbandwidthefficiencyindist,ributedcontinuousOneofthemajorfactorsaffectingthebandwidtheffi-mediastreamingsystemsisthekeyindeliveringcost-ef
3、fectiveciencyofstreamingisthehighvariabilityindatarateovermult,imediaservicestodistributedandheterogeneousre-thedurationsofcontinuousmediastreams[6].Thehighceivers.Weintroduceatechniquebasedonstreammulti-variabilityiscontributedbyboththeinherentmediacontentplexing
4、toachievethehighestpossiblebandwidthefficiency,dynamicsandtheuseofprediction-basedencodingtech-whilepreservingstringentanddeterministicqualityofser-niques(e.g.inter-framecodinginMPEGvideo[lo])forviceguarantees.Thetechniqueaccomplishestheoptimalhighercompressionper
5、formances.multiplexing(i.e.resultinginthelowestpossiblebandwidthTraditionally,peak-rateallocationisusedtoallocatenet-allocation)byexploitingboththetemporalandthespatialworkbandwidthforthestreamingofvariable-bit-rate(VBR)structuresamongagroupofcontinuousmediastream
6、s.Wecontinuousmediastreams.However,peak-rateallocationpresentafamilyofoptimalmultiplexingschedules.Thead-canbequitewastefulofnetworkresourceifthebit-ratevari-verseper-streameffectsofoptimalmultiplexingarestud-ationishigh.Althoughthereareothernetworkservicessuchied
7、andatechniquebasedont,ransmissionrearrangementisasATMVBRserviceaimedattransportingVBRsources,proposedtomitigatestheseeffects,withoutsacrificingtheduetotheirstatisticalnature,theyarenotsuitablefortheachievedmult,iplexingoptimahty.Theresultspresentedintransportofcon
8、tinuousmediawithdeterministicquality-of-thepaperprovidesomefundament#alcriteriaandlimitsinservice(QoS)guarantees.thedesigna.ndevaluationofresourcealloca
