WiFi performance analysis in high-speed railway communication

Abstract

In High-Speed Railways (HSRs), the Train Control and Management System (TCMS) plays a crucial role. However, as the demand for train networks grows, the limitations of traditional wired connections have become apparent. This paper designs and implements a Wireless Train Communication Network (WTCN) to enhance the existing train network infrastructure. To address the challenges that wireless communication technology faces in the unique environment of high-speed rail, this study first analyzes various onboard environments and simulates several typical scenarios in the laboratory. Integrating the specific application scenarios and service characteristics of the high-speed train control network, we conduct measurements and validations of WiFi performance, exploring the specific impacts of different factors on throughput and delay.

Keywords

High-speed railway / Train wireless communication network / WiFi / Communication performance measurement

Declaration of Competing Interest

The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Fengye Hu reports financial support was provided by the National Natural Science Foundation of China. Zhuang Ling reports financial support was provided by Beijing Engineering Technology Research Center of High-speed Railway Broadband Mobile Communication of Beijing Jiaotong University. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Acknowledgements

The authors would like to acknowledge support from the Beijing Engineering Research Center of High-speed Railway Broadband Mobile Communications (BHRC-2024-1), Beijing Jiaotong University, and the National Natural Science Foundation of China (U21A20445).

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