基于改进AODV的车载路由协议研究

Research on vehicle routing protocol based on improved AODV

在研究车载网体系结构、架构标准的基础上,对车载网路由协议进行分析,分析比较基于地理位置的贪心周边无状态路由(GPSR)协议和基于分簇的按需距离矢量(AODV)算法改进协议的各自特点,再结合NS2对车载环境进行仿真.仿真结果表明,采用改进的按需矢量算法(CI-AODV)的数据包到达率较GPSR算法有明显提升,平均端到端时延也变小.

Vehicle-borne Internet is a mobile wireless self-organizing network for data transmission between vehicles and roadside units.First,based on the network structure and architectural standards,the paper analyzes the distinctive features of two Internet routing protocols,namely,GPSR routing protocol on geographic location and AODV improved protocol on clustering.And then,the vehicle environment is simulated by NS2.Simulation results show that,compared with GPSR routing algorithm,CI-AODV algorithm has higher packet arrival rate and lower average end-to-end delay.