车辆自组织网络的仿真研究

Research on Simulation of Vehicular Ad Hoc Networks

因车辆自组织网络巨大的应用潜力而日益受到学术界和产业界的重视,现已成为一个研究热点。但是因为其自身的特点,在研究过程中,真实的室外试验受到条件限制而难以进行,所以仿真成为最主要的分析验证手段之一。但是,单个的交通仿真和网络仿真都难以实现完整、真实的仿真分析。分析研究了基于SUMO、MOVE和NS2的仿真框架、流程,并且以实际的曼哈顿地图数据为实例,对经典的AODV协议进行了仿真分析。仿真结果表明车辆自组织网络和一般自组织网络的差异,传统的路由方法在车辆自组织网络中并不适用,需要开发新的网络架构和方法,提高车辆自组织网络的性能。

For its huge potential applications of Vehicular Ad hoc Networks, it has become a research hot, and received increasingly focuses from academics and industries. Due to its own uniqueness, the real outdoor experiment is hard to conduct because of limited conditions during research and development, and simulation turns into one of the main analysis and verification ways. Single transportation or network simulation, however, is insufficient to implement the whole, realistic simulation. The simulation framework of simulation based on SUMO, MOVE and NS2 is researched, and the integrated simulation flow is also presented. Furthermore, an actual Manhattan map data is included to do simulation analysis for the typical ad hoc routing protocol AODV. The simulation results show that there is a big difference between Vehicular Ad hoc networks and other general Ad hoc networks, and traditional routing strategies are inadequate for routing in Vehicular Ad hoc Networks. So, the new network architecture and methods should be developed to improve its performance.