摘要
基于无线MESH网络(WMN)的机车信号数据传输系统,采用第三代WMN技术,通过优化网络拓扑提高系统的健壮性,采用混合频道复用方案增强MESH路由器节点的处理能力,采用圆极化天线增强无线信号接收效率,降低因为WMN多跳传输引起的带宽衰减,有效解决了有限发射功率条件下,无线覆盖和带宽性能优化的问题。
This paper presents a locomotive signal data transmission communication system based on the concept of a wireless MESH network, WMN. The proposed communication system has several features as follows ： the system employs the third generation WMN technique and enhances the robustness of the sys- tem by utilizing a new network topology, and uses mixed channel and multiplexing scheme to improve the processing capacity of the MESH router node. Through adopting circularly polarized antenna which can improve the efficiency of wireless signal reception, the bandwidth decay rate can be minimized due to the multi - hop transmission. It is efficient to resolve the issue of wireless coverage and bandwidth optimization under the limited transmission power.
出处
《铁道通信信号》
2014年第5期50-53,共4页
Railway Signalling & Communication
关键词
机车信号
无线MESH网络
多跳
带宽
通信系统
Cab signal
Wireless MESH network
Multi hop
Bandwidth
Communication system
