基于OPNET的以太列车骨干网性能仿真及分析

Simulation and Analysis on Performances of Etheric Train Backbone Network Based on OPNET

当前传统的列车网络对满足诸如视频播放等大流量的数据传输需求已经比较困难，本文介绍如何利用OPNET仿真软件，根据613752-5协议来搭建以太列车骨干网的网络模型、节点模型和进程模型，以获取网络正常工作时的时延、吞吐量和丢包率，并通过仿真结果来说明将以太网技术运用到列车通信中可以使列车网的数据传输速率和传输量提升，以此改善传统列车网络的性能，满足列车新型服务的需求。

Nowadays, the traditional train network has already been rather difficult to meet the data transmission requirement of large capacity, such as video playing. This paper describes how to use OPNET simulation software to set up the network model, node model and process model of Etheric train backbone network according to 61375 2-5 protocol, in order to get the sitm,lation data that include the time delay, throughput and packet loss ratio. Furthermore, the simulation result illustrates that the data transmission rate and transmission quantity of the train network ean be increased by using Ethernet technology in the train communication, hereby it will improve the performances of traditional train network and satisfy the demands for the new pattern service in trains.