In order to obtain traffic information timely and accurately, the algorithm of traffic information collection based on inter-vehicle communication mode was improved. The information is translatcd by broadcast to avoid the net jam caused by periodical broadcast. The operation mode and workflow of the traffic information collection system based on inter-vehicle communication is proposed. The simulation of the system was performed in NS2 simulator to verify the algorithm. The accuracy of the traffic information collection method in broadcast communication mode was verified in comparison with the unicast communication mode.%为了及时准确地获取道路交通的路况信息,改进了基于车车通信方式的交通信息采集算法,采用广播通信方式,避免了周期性广播带来的网络堵塞问题,提出了基于车车通信方式的交通信息采集系统的工作方式及其工作流程.同时在NS 2网络仿真器上进行了仿真模拟及相应的算法验证,通过与单播通信方式的比较,验证了广播方式下该交通信息采集算法的准确性.
展开▼
