CBTC无线信道规划中信道间干扰因子的研究  

Research on overlapping factors among wireless channels in channel allocation design for CBTC

作　　者：黄柏宁[1] 戎蒙恬[1] 刘涛[1] 杜新华[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《计算机工程与应用》2009年第25期228-230,共3页Computer Engineering and Applications

基　　金：国家自然科学基金No.60521002;上海-应用材料研究与发展基金No.07SA02~~

摘　　要：基于无线通信的列车控制系统一般采用IEEE802.11g标准无线局域网实现数据传输。根据IEEE802.11g标准的OFDM调制方式并结合其11个无线信道频率特性,研究不同信道间的频率重叠干扰情况,计算得到信道间干扰因子。然后在一应用场景中分析信道干扰对设备接收信号质量的影响,可为设计信道分配方案提供参考。CBTC（Communication-Based Train Control） usually employs the IEEE802.11g WLAN to implement its data communication.This paper simulates the overlapping effect and makes a quantitative analysis to the overlapping factors among the 11 wireless channels according to the characteristics of OFDM modulation and channel frequencies assigned by IEEE802.11g startdard.Then the impact of overlapping effect among channels is assessed on the received signal quality in a scene for evaluation.

关 键 词：无线通信的列车控制系统(CBTC) IEEE802.11G 信道间干扰 干扰因子 

分 类 号：U285.5[交通运输工程—交通信息工程及控制]