基于LTE-R和AdHoc融合组网的铁路通信方法研究  

Study on Railway Communication Methods Based on LTE-R and Ad Hoc Integrated Networking

作　　者：张金瑞 Zhang Jinrui(Zhengzhou Zhongjian Shen-tie Rail Transit Co.,Ltd.,Zhengzhou 450018,China)

机构地区：[1]郑州中建深铁轨道交通有限公司,郑州450018

出　　处：《铁路通信信号工程技术》2020年第3期68-71,共4页Railway Signalling & Communication Engineering

摘　　要：LTE-R网络采用基于蜂窝的通信方式,确保铁路通信系统满足可靠性、有效性等。但是由于铁路沿线地形大多为山区,对无线信号的传播造成很大的衰落,产生很多信号弱场和盲区。将LTE-R网络和AdHoc网络进行融合组网,来弥补传统的LTE-R网络在信号覆盖时的覆盖缺陷。将Ad Hoc网络与其他现有的网络融合,通过添加一些转发设备来利用Ad Hoc的频段解决传统网络里出现的拥塞等问题,融合组网之后具有更高的通信效率。LTE-R network mainly adopts cellular communication mode to ensure that the railway communication system meets the requirements of reliability,controllability,effectiveness and safety.However,as the terrain along the railway is mostly mountainous or hilly areas,tall mountains or buildings along the railway will cause a great decline in the transmission of wireless signals,resulting in many weak signal fields and blind areas.The purpose of this paper is to solve the problems of many weak signal fields and blind areas generated by the traditional LTE-R network in the complex terrain areas along the railway,and put forward a way of combining LTE-R network and Ad Hoc network to make up for the coverage defects of the traditional LTE-R network in signal coverage.The method adopted in this paper is to combine Ad Hoc network with other existing networks Some forwarding devices are added to make full use of the frequency band of Ad Hoc to solve the user communication problems such as congestion in the traditional network.The integrated network has higher communication efficiency.

关 键 词：LTE-R Ad HOC 融合组网 信号覆盖 

分 类 号：U285.21[交通运输工程—交通信息工程及控制]