Abstract
VANET is the concrete the application of the wireless and mobile ad-hoc network in this automotive environment. Because of the frequent changes of the network topology, the fast mobile node, the heavy routing overhead and other reasons, it’s very uneasy to contrive a effective the protocol of the routing layer for routing statistics among mobile vehicles. existing Routing protocols which have existed about the VANET are little significant and little impact to simulate all kinds of traffic scenarios. Therefore, the design of the competent routing protocol has been more extraordinary meaning. This thesis putted forth this routing protocol whose name is improved ZRP routing protocol based on clustering, which is more steady and there is acting better routing protocol performance than traditional ZRP in MANET by using the concept of cluster in the hierarchical network to replace the partition of traditional ZRP protocol. The new protocol which is depended on the algorithm of clustering sets different freight (coach) as the cluster head, the ordinary vehicles to be the cluster members in two hops, in order to reduce the calculated amount of clustering algorithm, the routing overhead, the ETE(end to end) delay and increase the delivering packet fraction. Result of the simulation illustrates that the improved protocol compared with the traditional ZRP routing protocol, mainly contains performance indexes the packet delivery ratio increased by 36%, routing overhead and end-to-end delay reduced by 20% and 29% respectively.
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