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1、摘要隨著人們對(duì)移動(dòng)通信和移動(dòng)計(jì)算提出越來越高的要求，近年來關(guān)于移動(dòng)自組織網(wǎng)絡(luò)——即移動(dòng)Adhoc網(wǎng)絡(luò)(MobileAdhocNetworks，MANET)的研究逐漸成為移動(dòng)通信領(lǐng)域的熱點(diǎn)之一。移動(dòng)自組網(wǎng)是由一組帶有無線收發(fā)裝置的移動(dòng)節(jié)點(diǎn)組成的一個(gè)支持多跳的臨時(shí)性的網(wǎng)絡(luò)自治系統(tǒng)。Adhoc網(wǎng)絡(luò)是一種由移動(dòng)節(jié)點(diǎn)組成、拓?fù)浣Y(jié)構(gòu)動(dòng)態(tài)變化的自組織網(wǎng)絡(luò)，針對(duì)無線自組網(wǎng)路由協(xié)議在OPNET11.5環(huán)境下如何實(shí)現(xiàn)問題,在介紹網(wǎng)絡(luò)仿真軟件OPNET11.5和無線協(xié)議AODV原理的基礎(chǔ)上,結(jié)合采用AODV協(xié)議的移動(dòng)節(jié)點(diǎn)實(shí)例,詳細(xì)給出在此仿真環(huán)境中對(duì)分組遞交率、端到端的平均時(shí)延、路由協(xié)議開銷在內(nèi)等關(guān)鍵
2、參數(shù)進(jìn)行分析的詳細(xì)過程。本文首先對(duì)現(xiàn)有的兩大類路由協(xié)議——主動(dòng)式路由協(xié)議和反應(yīng)式路由協(xié)議中幾種有代表性的路由協(xié)議進(jìn)行了較詳細(xì)的分析，接著在OPNET平臺(tái)上仿真了AODV的路由協(xié)議，并對(duì)AODV的路由協(xié)議進(jìn)行了詳細(xì)的分析。關(guān)鍵詞：Adhoc網(wǎng)絡(luò)，OPNET，AODV路由協(xié)議，分組遞交率，平均時(shí)延注：本設(shè)計(jì)(論文)題目來源于教師的省級(jí)科研項(xiàng)目，項(xiàng)目編號(hào)為：2009A080207008。IVAbstractWiththeincreasingdemandandpeople'srequirementonmobilecommunicationandmobilecomputing，resear
3、chonMobileAdHocNetworks(MANET)hasbecameanimportantfocusinthemobilecommunicationsfield.MANET(MobileAdHocWirelessNetwork),akindofmulti-hopwirelessnetwork,composedofmobilenodesthatcommunicatingwitheachotherthroughwirelesslinks.Adhocnetworkisaself-organizingnetwork,itstopologyisalwayschanging.Adh
4、ocOndemandDistanceVectorRouting(AODV)isanimprovementonDSDV.UsingtheOPNETnetworksimulator,andanalyzedtheperformanceofAODVunderdifferentsimulatedscenesfromaspectsas:packetdeliveryratio,end-to-enddelay,routingcost.Fromthedetailedsimulationresultsandanalysis,wecanknowhowitworksandtheperformanceof
5、AODV.Inthispapertwoclassesofroutingprotocolwereintroduced·proactiveroutingprotocolandreactiveroutingprotocol，somerepresentativeroutingprotocolsintheirbranches(AODV,DSR，TORAetc.)werediscussedindetailseparately,thenitisADOVroutingprotocolsforsimulationinOPNET,andbasedonitsperformanceareanalyzed
6、indetail.Keywords:Adhocnetwork，OPNET，AODV，Packetratesubmitted，AverageDelayIV目錄1緒論11.1課題研究背景11.2國(guó)內(nèi)外課題研究狀況21.3論文構(gòu)成及研究?jī)?nèi)容42OPNET仿真軟件52.1網(wǎng)絡(luò)仿真軟件簡(jiǎn)介52.2OPNET仿真軟件的簡(jiǎn)介62.3OPNETModeler的主要特征92.4OPNET編輯器簡(jiǎn)介103AdHoc網(wǎng)絡(luò)153.1AdHoc網(wǎng)絡(luò)153.1.1Adhoc網(wǎng)絡(luò)153.1.2AdHoc網(wǎng)絡(luò)的特點(diǎn)173.1.3AdHoc網(wǎng)絡(luò)的應(yīng)用需求173.2AdHoc網(wǎng)絡(luò)中的路由協(xié)議183.2.1Adhoc
7、網(wǎng)絡(luò)路由協(xié)議的分類193.2.2表驅(qū)動(dòng)路由協(xié)議193.2.3按需驅(qū)動(dòng)路由協(xié)議213.3AdHoc路由協(xié)議算法233.3.1AODV路由協(xié)議的基本原理233.3.2AODV路由協(xié)議路由表結(jié)構(gòu)243.3.3AODV路由協(xié)議消息控制幀243.3.4AODV路由算法的詳細(xì)過程264基于OPNET平臺(tái)的Adhoc路由協(xié)議仿真294.1參數(shù)定義294.2基于OPNET平臺(tái)的AdHoc路由協(xié)議詳細(xì)仿真過程294.2.1AODV路由協(xié)議的OPNET實(shí)現(xiàn)304.2.2OPNET仿真結(jié)果查看36IV
