高速磁悬浮列车车地无线通信技术的探讨

Research on high-speed maglev train-ground wireless communication technology

摘要:

高速磁悬浮列车因其高速便捷将是未来非常有竞争力的地面交通工具，但是高速磁浮车地通信面临多普勒频移大、越区切换频繁、传输实时性要求高以及需承载多种业务等技术问题。本文研究了无线局域网(WLAN)、38 GHz毫米波和地铁长期演进通信系统(LTE-M)/5G等常见民用通信和铁路地铁通信技术在高速磁悬浮系统中的适应性，并对这些通信技术在高速磁悬浮系统车地通信环境中的应用进行了详细分析，提出了改进和应用这些通信技术的方向和技术路线。

Abstract:

High-speed maglev trains will be very competitive ground transportation tools in the future because of their high speed and convenience. However, high-speed maglev train-ground communication faces the Doppler effect caused by high-speed motion, frequent handovers, high real-time transmission requirements, and the requirements of carrying multiple services. In this paper, the adaptability of common civil communication and railway subway communication technologies such as Wireless Local Area Network(WLAN), 38 GHz millimeter wave and Long Term Evolution-Metro(LTE-M)/5G in high-speed maglev system is studied, and the analysis on the application of these communication technologies in the train-ground communication environment of high-speed maglev system is carried out. The direction and technical route of how to improve and apply these communication technologies are put forward.