基于交换式以太网的列车通信网络建模与性能分析

doi:10.11959/j.issn.1000-436x.2015244

Abstract

Abstract:

In order to meet the information transmission requirements of large capacity,high speed and hard real-time in the future,switched ethernet was introduced to the train communication network (TCN).Messages of different priorities was investigated,and established the TCN transmission process model with determined and stochastic Petri nets (DSPN) in accordance to its communication scheduling mechanism.The influences of different switch scheduling algorithms to the delay were compared,and the relationships between throughput and message number,throughout and generating cy-cle were respectively investigated.The experimental results show that the priority scheduling algorithm can reduce the delay of real-time data under the condition of sacrificing non real-time data's delay.It also verify the throughput of TCN based on switched ethernet is much higher than that of the existing TCN,which can provide theoretical basis for the de-sign and optimization in the future.

Key words: train communication network, switched ethernet, DSPN, scheduling, throughput, delay

Yu-zhuo ZHANG,Yuan CAO,Ying-hong WEN. Modeling and performance analysis of train communication network based on switched ethernet[J]. Journal on Communications, 2015, 36(9): 181-187.

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References 17

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