基于綜合策略的啟發(fā)式應用層組播設計與應用.pdf

1、中南大學碩士學位論文基于綜合策略的啟發(fā)式應用層組播設計與應用姓名：袁楷申請學位級別：碩士專業(yè)：計算機軟件與理論指導教師：黃東軍20070401applicationlayermulticastdevelopedinrecentyearswhichinheritssomecharacteristicsoftraditionalIPmulticast，won’tdependonthesupportofmulticastroutersduet

2、operformingOilendhostsandtransportingdatawithIPunicastinnetworklayerSOitavoidsthefataldrawbackssuccessfullywhichobstructthedevelopmentofIPmulticastandbeginstobeingappliedwidelyThisdissertationintroducessomeofmainapplicat

3、ionlayermulticastsfirst，comparesandanalyzestheperformanceofthemindetailSecondly，itdiscussestwogeneralapplicationlayermulticastrouteproblems，twogreedyheuristicsalgorithmandprotocoldesignprinciplesBasedonthecharacteristics

4、ofpresentapplicationlayercastsystems，itprovidesanewapplicationlayermulticastCALMwhichadaptscommunicationswithmultiplesendersandcanmaintainseveralmulticastgroupwithmiddlesizenumberofmemberssynchronouslyThisprotocolusescen

5、tralstrategyandlowerscontrolloadwithmonitoringbetweenthemembersofmulticastsessiongroupFortheproblemofexcessivelydependingcentralcontrollerweusethewayofredundancycontrollerstosolveitFurthermore，wedesignaheuristictobalance

6、delayandbandwidthefficientlyThesimulationexperimentshowsthatCALMmulticasttreeisclosetoIPmulticasttreeinefficiencyFinallyitdiscussesallapplicationofCALMthatapplicationCanreducethemountofdatatransportedbetweennodesefficien

7、tlytolowerbandwidthusebyusingaudiomergingtechniqueinaudioconferencewithmultiplesendersoverCAI，MThenewapplicationlayermulticastprovidedinthisdissertationcombinedwithsomecharacteristicsofmainapplicationlayermulticast，isaso