面向下一代城市轨道交通的无线自组织网络关键技术研究

Research on key technologies of wireless Ad-Hoc networks for next generation urban rail transit

当前城市轨道交通车-地通信采用的大区制覆盖方式已经无法满足未来的通信需求,将新兴信息技术与城市轨道交通业务深度融合成为下一代城市轨道交通的研究趋势。文章从下一代城市轨道交通车-地通信系统的通信需求出发,基于无线自组织网络技术,研究满足城市轨道交通综合业务承载要求的无线自组织网络架构,针对城市轨道交通场景的特殊性以及通信业务的多样性,研究城市轨道交通无线自组网的拓扑控制、资源调度、路由协议以及容错机制等关键技术,为下一代城市轨道交通通信系统的发展提供助力。

The current urban rail transit vehicle-to-ground communication technology has adopted the large coverage system, which may not be able to meet future communication demand. The deep integration of emerging in-formation technology and urban rail transit business has become the research trend of the next generation urban rail transit. Based on the communication requirements of the vehicle-ground communication system of the next generation urban rail transit,this paper studies the network framework of wireless AdHoc network that meets the requirements of urban rail transit comprehensive service carrying capacity based on wireless ad-hoc network technology. Aiming at the particularity of urban rail transit scenarios and the diversity of communication services, this paper studies the key technologies of urban rail transit wireless Ad-Hoc networks, such as topology control,resource scheduling, routing protocol and fault tolerance mechanism, that provide technical support for the wireless AdHoc network development of next generation urban rail transit.