基于TCP友好速率控制和前向糾錯(cuò)的視頻傳輸.pdf

1、華中科技大學(xué)碩士學(xué)位論文基于TCP友好速率控制和前向糾錯(cuò)的視頻傳輸姓名：許凡申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：系統(tǒng)分析與集成指導(dǎo)教師：曾致遠(yuǎn)20050509IIAbstractWiththerapiddevelopmentofInterinrecentyearspeople’slifewkstyleshavebeenchangingmeme.Theapplicationofwkisrapidlyexpingfromdatatransfertore

2、altimemultimediasuchasvideovoice.Videoisimptantaspectofmultimedia.BecausewkisbasedonthetechnologyofsterelayprovidesbestefftservicethevideoapplicationthatusuallyneedsQoSguaranteerequiresmecomplextechnologytoensurethevideo

3、quality.Obviouslyvideocommunicationisfacedwithnotonlyachanceofgreatdevelopmentbutalsoaseriouschallengeoftechnology.Soitisaveryimptanttheeticalpracticalvaluetoapplyresearchthevideocommunicationbasedonwk.Incurrentschemesof

4、videocommunicationthewkbasedtheendbasedaretwomainmeans.Becausetheendbasedschemeneedsnottochangethetopologyframewkofwkrequirenothingtowkequipmentitbearsmevaluablethanthewkbasedone.Basedondigitalvideocompressionwkprotocols

5、thispaperfocusesontheendbasedschemetoresearchtwokindsofQoScontroltechnologythatappliedinapplicationlayer:TFRCFEC.TFRCcanprovidecongestioncontrolinvideocommunicationensuretofairlycompetewkresourcewithTCP.FECcanrestethelos

6、tpacketstoacertainextent.CombinedthetwotechnologiesaMPEGcontroltactichasbeenpresented.ThetacticadoptsaTFRCmodeltoprovidecongestioncontrolguaranteethebwidthfairintroducesanadaptiveerrerasecodingtoeliminatetheimpactduetoth

7、elostpacket.Thetactichasconsideredtheeffectoftransmissionthebalanceofefficiencybetweenflowlimittransmissionexpenseafterintegratingthetwotechnologies.ItcanbeprovedbyemulattobegoodperfmancetohavegoodQoSguarantee.Thetactici

8、salsointroducedintoatransmissionschemewhichisdepictedindetail.Attheendofthepaperwemakeasummaryofthevideocommunicationtransmissiontacticdiscussthefuturejoblookfwardtothevideoapplicationinthefuture.Keywds:videotransmission