车辆自组织网仿真研究*

由于车辆自组织网络（vehicular Ad hoc networks，VANETs）的网络节点移动速度快、网络拓扑变化频繁、节点移动要遵循道路规则等特性, 现阶段对VENET的研究主要基于模拟仿真。VANET仿真研究包括车辆移动模型的构建和无线网络的仿真，其中车辆移动模型的真实性是评价VANET网络仿真结果是否可靠的关键因素。概述了车辆移动模型的分类, 提出了车辆移动模型构建的基本框架, 介绍了文献中比较流行的车辆移动模型和网络仿真器, 详细讨论了现有的VANET综合仿真软件以及VANET应用仿真研究, 最后对VANET仿真的未来发展提出展望。

Research overview of simulation of vehicular Ad hoc networks

Simulation is an indispensable tool for the research of VANET(vehicular Ad hoc networks) due to its nodes moving quickly, topology changing quickly, nodes moving according to road rules, and so on. Mobility model and network simulation are two aspects of the simulation of VANET.The reality of mobility model is key to evaluate the reliability of VANET simulation.This paper first introduced a classification of mobility model, and then presented a framework of realistic mobility model.Thirdly,provided an overview and comparison of several mobility models and network simulation software,described existing integrated VANET simulation software and VANET application simulation.Finally,presented the proposal for the future of VANET simulation.