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1、AbstractWiththepurposeofreducingthecommunicationroutingdelayandimprovingtheresourceutilizationincurrentWiMAXsystembasedonconventionalroutingmechanism,wedesignandrealizetheWiMAXlocalroutingsystem.Basedontheanalysisofthelackofconventionalroutingscheme,wedeterminetousethedistributedmethodofestabli
2、shingtheupperandlowerdatapathasthecoreideaoflocalroutingsystem,aimedatdoingthejudgmentofwhethertouselocalroutingindataaggregationpointwhichisclosesttotheuser.GatewayshouldprocessthesignalinginteractionswithBSandMSefficiently,sowedefinetheprecisesignalingprocessesandXMLspecification,elaboratethe
3、signalprocessflowofeachfunctioninthegatewayside,anddesignthemechanismofdatastorageandroutingforwardingprocess.Thispaperfocusesonachievingtorealizethegatewaylocalroutingfunction,sowebuildademonstrationsystemtohighlightitsrelativeadvantagesoftheconventionalroute.First,afteranalysisthesystermproto
4、colstackmodel,wedeterminetousetheQtplatform.Second,basedontheanalysisanddescriptionofthekeyfunctionalmodulesofthegateway,weintriducetheprocessofgatewaystartup,useraccess,andtheupperandlowerdatapathestablishment.Third,withthecombinationofthethirdchapter'stheoreticalexpositionandtheanalysisofthev
5、ariousmodules,wecouldgetoveralllocalroutingfunctionofgateway.Finally,weusedemonstrationsystembasedonQtplatformtoverifytheeffectivenessofthelocalroutingsystem.Thedifferentpathofconventionalroutingandlocalroutingwhenestablisheduplinkanddownlinkdatapath,whichcouldfullyprovedthatthelocalroutingsyst
6、emnotonlyreduceunnecessarycommunicationpathsandthenetworkcommunicationdelay,butalsoimprovetheutilizationofnetworkresources・Keywords:WiMAXSystems,LocalRouting,DataPathOptimization,RouteForwarding目录专用术语注释表1第一章绪论21.1课题来源及研究背景21.1.1课题来源21.1.2研究背景21.2研究内容及意义21.3论文组织结构3第二章WiMAX本地路由方案42.1WiMAX网络拓扑结构42
7、.2WiMAX常规路由52.3WiMAX本地路由72.3.1本地路由方案的核心思想72.3.2分布建立数据路径的本地路由方案82.4本章小结13第三章网尖的本地路由功能设计153.1本地路由系统概述153.2网尖信令处理和XML规范163.2.1用户初始化接入网络173.2.2IP地址分配203.2.3获取对端IP233.2.4演示系统本地路由执行点总汇253.2.5上行数据链路建立和本地路由判断263.2.6下行数据链路建立29327数据传输303.2.
