基于D2D技术的车车通信研究

阐述车车之间实现直接通信的应用价值和意义。利用列车在RBC中的注册数据(车次号)及同方向列车在区间内相对固定的运行顺序,在RBC端加入列车通信管理单元协助列车完成身份识别,并对特殊情况下的列车通信管理单元的布置原则进行分析。探讨利用D2D技术实现车车之间的信息互通,在结合C3线路列车的运行特征与D2D技术的模式特征后,选择D2D基站中继模式建立前后行列车的通信模型。在车车通信系统模型建立的基础上,对该系统的故障因素进行分析,利用马尔科夫模型对系统可靠性进行验证,结果显示其可靠性满足目前铁路运输的需求。

Study on Direct Train to Train Communication Based on D2D Technology

This paper introduces the application value and significance of direct train to train communication. With the registration data( the number of the train) of trains in RBC and the relatively fixed operation order of the trains running in interval in the same direction,train communication management unit is added on RBC side to assist train identification,and the layout principles for train communication management unit under special situation are analyzed. Using D2 D technology to realize the communication between trains is explored and in combination with C3 line train running characteristics and the technique of D2 D mode characteristics,D2 D base station relay mode is employed to establish communication model of the trains running before and after. On the basis of the establishment of direct train to train communication system,the breakdown factors of the system are analyzed,and Markov Model is used to verify the system reliability. The results show that its reliability can meet the current requirement of railway transportation.