中文摘要：

对VANET网络中现有的路由协议进行了系统的分析和研究,提出了一种基于区域广播的VANET机会路由协议。基于安全消息在网络割裂情况下的传播需求,新协议结合地理信息和机会转发算法,提出了不同于点对点的新的基于区域广播的消息传播模式,以实现安全消息在稀疏车辆环境下的有效传播。理论分析和仿真实验表明,该协议相比传统路由协议具有更优异的网络性能和可靠性。

英文摘要：

This paper made a systematic analysis and research on me exlsung routing ptotocols network and proposed a VANET opportunistic routing protocol based on regional broadcast. It combined the geographic information and the opportunistic forwarding algorithm, and proposed a new message transmission mode based on regional broadcast, which is different from the point-to-point transmission mode, according to the demand of the safety message communication, in order to achieve the effective dissemination of the security message in sparse vehicle environment. It finished a detailed analysis and the simulation, which fully proved the efficiency and reliability of the new opportunistic routing protocol compared with the traditional routing protocols.