一种无线ATC系统的高速移动站点QoS分析  

QoS analysis for high-speed mobile station in wireless ATC system

作　　者：吴海洋[1] 彭章友[1] 

机构地区：[1]上海大学通信与信息学院,上海200072

出　　处：《电子测量技术》2007年第8期17-19,25,共4页Electronic Measurement Technology

基　　金：上海市教委基金资助项目(217438)

摘　　要：列车自动控制(automatic train control,ATC)系统是城市轨道交通中的关键系统,列车自动控制系统的无线化是城市轨道交通今后的发展方向。针对城市轨道交通无线通信的方案,本文重点研究了无线ATC系统中的重要性能:高速移动站点的QoS。本文给出无线ATC系统的系统模型以及无线接入点的布点方案,并分析了无线ATC系统的通信方法。最后在OPNET环境下进行了实验仿真,通过对以不同速率移动站点的仿真结果的分析,初步得到无线ATC系统的高速移动站点的极限性能。ATC system plays an important role in urban railway traffic, thus the future developing trend in ATC system of urban railway traffic is the wirelessness. In this paper, the significant performance of wireless ATC system, namely QoS of high-speed mobile station,is studied based on the idea of wireless communication in urban railway traffic. The model of wireless ATC system, the layout of wireless AP and the communication mechanism are analyzed. The simulation is accomplished based on OPNET. The results show that the high-speed mobile station＇s utmost performance is primarily obtained by the analysis of mobile station moving at various velocity.

关 键 词：无线ATC 接入点 802.1lb协议 

分 类 号：TN929.5[电子电信—通信与信息系统]