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Challenges Toward Wireless Communications for High-Speed Railway

机译：高速铁路无线通信面临的挑战

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摘要

High-speed railway (HSR) brings convenience to peoples’ lives and is generally considered as one of the most sustainable developments for ground transportation. One of the important parts of HSR construction is the signaling system, which is also called the “operation control system,” where wireless communications play a key role in the transmission of train control data. We discuss in detail the main differences in scientific research for wireless communications between the HSR operation scenarios and the conventional public land mobile scenarios. The latest research progress in wireless channel modeling in viaducts, cuttings, and tunnels scenarios are discussed. The characteristics of nonstationary channel and the line-of-sight (LOS) sparse and LOS multiple-input–multiple-output channels, which are the typical channels in HSR scenarios, are analyzed. Some novel concepts such as composite transportation and key challenging techniques such as train-to-train communication, vacuum maglev train techniques, the security for HSR, and the fifth-generation wireless communications related techniques for future HSR development for safer, more comfortable, and more secure HSR operation are also discussed.
机译：高速铁路（HSR）为人们的生活带来便利，通常被认为是地面交通最可持续的发展之一。高铁建设的重要组成部分之一是信号系统，也称为“操作控制系统”，其中无线通信在列车控制数据的传输中起着关键作用。我们详细讨论了高铁运营方案与常规公共陆地移动方案之间无线通信科学研究的主要差异。讨论了高架桥，切割和隧道场景中无线通道建模的最新研究进展。分析了非平稳通道的特征以及视距（LOS）稀疏和LOS多输入多输出通道，这是高铁场景中的典型通道。一些新颖的概念（例如复合运输）和关键的挑战性技术（例如火车到火车的通信，真空磁悬浮火车技术，HSR的安全性）以及与第五代无线通信相关的技术，这些技术将为将来的HSR开发提供更安全，更舒适和更安全的服务。还讨论了更安全的HSR操作。

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