中文摘要：

本论文介绍了一种车联网中的多优先级的自适应动态路由协议（MPDAR），着重介绍了不同优先级等级消息的分发机制，该路由协议利用了车辆的地理位置和速度信息，并保证了1）车联网中不同类型消息具有不同的QoS要求；2）完全分布式路由协议。最后，本论文应用ViSSIM交通仿真软件和NS-2网络模拟软件，对MPDAR协议进行仿真。结果表明，MPDAR路由协议较其他路由协议性能有所改进。

英文摘要：

This paper describes a MPDAR （Multi-Priority Dynamic Adaptive Routing） protocol for VA- NET, focusing on distribution mechanism for messages with different priorities. By using the geographic and speed information of vehicles, the routing protocol could provide different QoSs for different types of messages and fully-distributed routing protocol. The proposed MPDAR protocol is simulated and evaluated with two simulation software called VISSIM and NS-2. The results show that the performance of MPDAR protocol is better than that other routing protocols.