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1、?l“Ⅱ暑lB骨糞日：—衛(wèi)墊L镕級——壘五UDc：——{目：—鯉墼!§一東南大學博士學位論文覆蓋網(wǎng)絡多播路由協(xié)議及算法的研究研究生姓名：昱塞呈導師姓名：匭星鞋麴援申請學位級別——三生蝗±—一論文提交口蜘』她量至』L且—旦學位授予單位——_j基直盍莖一學科專業(yè)名稱—讓簋扭座廈燕!熊一論文蔣辯口j11]j塑曼圭』月——目學位授予日期』生—生—旦—旦一答辯蠶員會主席評閱人2006年1月日東南人學博I學位論史ABSTRACTWiththedevelopmentofcomputernetwork，Interns4hasbeenbecomingallimportantpartofthemeanstr
2、eamingofhumanbeing．PeoplehopeInteracteonldprovideallkindsofnetworkservicestheapplicationsneed．Especially,theemergenceofmanynewmultimediagroupapplications，suchasvideoconferencing，video-on-demandanddistancelearning，requiremultlcastcommunJcationserviceimminently．Basedontheconceptofoverlaynetwork，ino
3、verlaymulticast，endsystemsperformallmulticastcommunicationfimctionahtiesinsteadofIPr；Duters．ComparedwithIPmulticast，thegreatestadvantageofoverlaymultieastisitneedn’tchangethelowernetworkinfiastructure，andCallbedeployedeasily．Overlaymultieastembodiesthetrendthattheemphasisofnetwork∞-rviceresearchi
4、sshiRingfromnetworktoapphcationlayerinthenextgenerationhImmet，anditscoreproblemishowtobuildoverlaymulticastroutingsatisfiedbyapplications．hl“sthesis，overlaymultieastroutingprotocolsandalgorithmswithotherrelatedproblemsa∞studied，wheretheQoSrequirementsofmultimediaapplicationandheterogeneityofnetwo
5、rkarefocused．F缸ny'ageneraloverlaymulticastnetworkmodelisproposed，andtheroutillgoptmmlproblemsinoverlaymulticastateclassified．thensolnerecentimportantoverlaymulticastroutingprotocolsandalgorithmsarefullyanalyzedanddiscussed．Theseconstructthetheoryfratueworkandpointoutthestudydirecttonofthisthesis．
6、Based0ntheabovework,ourresearchOlioverlaymultieastisperformedinthefollowingaspects，whichincludecentralmedrou衄galgorithms，distributedroutingprotocolsandsystemprototype．Inthestudyofcentralizedrou缸galgodtlmE．based∞bothdegreeconstraints-delayintegrationandapplicationlayertopologyoptimumstrategies，ane
7、wminilnumdelayoverlaymultieasttreebuildingalgorithmcalledDegree·DelayCompactTree∞DCT)isproposedtoimprovetheroutingperformance；Tosettletheheteroganeityofbandwldthrequiredbyreal-timemultunedmapplication,adoptingthestrate
