车载自组织网络路由协议和探究进展摘要：近年来，车载自组织网络（VANET）快速发展，路由协议的准确分类归纳和对比分析对未来研究有重要的意义。针对VANET中路由协议归类分析不完善和未来发展趋势进行综述，依次从基于拓扑、地理和混合路由等方面进行分类归纳,着重介绍了一些经典的地理路由协议并对其特点和性能进行分析，提出了优缺点和改进意见。重点分析地理路由中未来研究热点的延时容忍路由（DTN）和机会路由协议，提出了VANET路由所面临的主要挑战和潜在的机遇，并指出明确的研究路径。关键词：车载自组织网络；地理路由协议；延时容忍路由协议；机会路由协议中图分类号：TP393文献标志码:A英文标题VehicularAdHocnetworkroutingprotocolanditsresearchprogress英文作者名FUYuanke*,TANGLun,CHENQianbin,GONGPu英文地址（ChongqingKeyLaboratoryofMobileCommunicationsTechnology,ChongqingUniversityofPostsandCommunications,Chongqing400065,China英文摘要)Abstract：Inrecentyears,withtherapiddevelopmentofVehicularAdhocNETwork(VANET),wellclassifiedroutingprotocolandcomparativeanalysisareimportantforfuturestudy.ThispaperdealtwiththeambiguousclassificationanddeficientanalysisoftheroutingprotocolinVANET,classifyingandsummarizingtheroutingprotocolsonthebasisoftopology,geographyandhybridrouteinturn.Mainlyintroducingsomeclassicalroutingprotocols,itanalyzedtheircharacteristicsandperformance,andputforwardtheadvantagesanddisadvantagesaswellasimprovements・SpecialstresswasputonthecomparativeanalysisofDelayTolerantNetwork(DTN)andopportunityroutingprotocolwhichwouldbecomehotspotsforfuturegeographicroutingstudy.Besides,themajorchallengesandpotentialopportunitiesthatVANETwasfacingwerepointedout,whichhadlaidthefoundationoffutureprotocolstudyandsuggestedthepathtoresearchclearly.Inrecentyears,withtherapiddevelopmentofVehicularAdhocNETwork(VANET),wellclassifiedroutingprotocolandcomparativeanalysishashadvastimportanceforfuturestudy.ThispaperdealtwiththeambiguousclassificationanddeficientanalysisofroutingprotocolinVANET,classifyingandsummarizingonthebasisfromtopology,geographyandhybridrouteinturn.Mainlyintroducingsomeclassicalroutingprotocols,itanalyzedtheircharacteristicsandperformance,andputforwardtheadvantagesanddisadvantagesaswellasimprovementssuggested.LayingspecialstressonthecomparativeanalysisofDelayTolerantNetworks(DTN)andopportunityroutingprotocolthatwillbecomehotspotsforfuturegeographicroutingstudy,itproposedthemajorchallengesandpotentialopportunitiesthatVANETisfacing,whichhaslaidthefoundationoffutureprotocolstudyandpointedoutthepathtoresearchclearly.英文关键词Keywords：VehicularAdhocNETwork(VANET)；geographicroutingprotocol；delaytoleranceroutingprotocol；opportunityroutingprotocol0引言车载自组织网络(VehicularAdHocNetwork,VANET),是由车载单元和路边设施组成，通过无线数据传递与蜂窝网、WiFi及陆地移动无线设备连接，再通过公共网路送到移动管理中心的特殊专用网络架构。它是移动自组织网络(MobileAdhocNetwork,MANET)的一个特殊范畴，具有高速动态变化的拓扑、受道路拓扑和障碍物限制、节点密度分布不均、无线传输间歇性中断和阴影效应等特点。目前VANET正朝IEEE802.lip、长期演进(LongTermEvolution,LTE)上推进。未来将全球卫星定位系统(GlobalPositionSystem,GPS)和传感技术运用到智能交通和信息服务上，智能停车管理和无线连接队列行驶不需要交通灯和车辆信息流量采集，智能咨询服务，智能移动视频会议等将会频频出现，具有广泛前景。