基于OPNET的智能交通系统仿真平台构建与性能分析

Construction and performance analysis of intelligent transportation system based on OPNET

针对车辆通信网络建立了智能交通系统单跳场景下的V2I和多跳场景下的V2V无线数据通信.鉴于国内外尚无完善的仿真环境,以及交通仿真相对于网络仿真的复杂性,使用OPNET Modeler软件对车-X无线通信网络进行建模和仿真.仿真给出了在V2I场景下改变车辆行驶的速度和通信范围,不会影响信息的可靠传输;在低速运动的V2V场景中,AODV协议比DSR协议更适合作为车辆通信网络的网络层路由协议.

In order to model and simulate the vehicle communication network, this paper designs simple vehicle^to-infrastructure （V2I） and vehicle-to-vehicle （V2V） scenarios of intelligent transportation system （ITS）. In view of the fact there are no perfect simulation environments and the complexity of traffic simulations related to the network simulations in China. Modeling and simulation of vehicle- X wireless communication network are based on OPNET Modeler software. General performance of wireless communication network of V2I scenario and V2V scenario are assessed. The paper puts for- ward the V2I scenario when changing the vehicle＇s speed and the communication range. In addition, the information transfer is reliable. In the low speed motion in V2V scenario, AODV protocol is more suitable than DSR protocol as the routing protocol in the network layer.