Abstract-The recent development of high-speed trains (HSTs) as an emerging high mobility transportation system, and the growing demands of broadband services for HST users, introduce new challenges to wireless communication systems for HSTs. Accurate and efficient channel models considering both large-scale and nonstationary small-scale fading characteristics are crucial for the design, performance evaluation, and parameter optimization of HST wireless communication systems. However, the characteristics of the underlying HST channels have not yet been sufficiently investigated. This paper first provides a comprehensive review of the measurement campaigns conducted in different HST scenarios and then addresses the recent advances in HST channel models. Finally, key challenges of HST channel measurements and models are discussed and several research directions in this area are outlined. Index Terms-High-speed train channels, channel measurements, non-stationary channel models, statistical properties.
In REF , a mobile relay architecture was investigated in the aspects of high speed train channel modeling.
Channel Measurements and Models for High-Speed Train Communication Systems: A Survey
IEEE Communications Surveys & Tutorials
IEEE Communications Surveys & Tutorials
Computer Science