Providing reliable broadband wireless communications in high mobility environments, such
as high-speed railway systems, remains one of the main challenges faced by the …

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 …

To satisfy the high data demands in future cellular networks, an ultra-densification approach
is introduced to shrink the coverage of base station (BS) and improve the frequency reuse …

With the widespread deployment of high-speed railways and the increasing speed of trains,
timely and reliable wireless transmission of train control signals and passengers' mobile …

Long Term Evolution (LTE) is considered to be the natural evolution for the current Global
System for Mobile Communications-Railways (GSM-R) in high speed railway environments …

The characteristic feature of 5G and beyond networks is the diversity of services, which is
required to support different user needs. However, the requirements for these services are …

With lower energy consumption, less environmental pollution, larger capacity, and higher
safety, the high-speed railway is playing an important role in mass transportations. The …

We compare narrow and wide laser beams in a free-space optical (FSO) communications
system for high-speed train communications and analyze the tradeoffs among the received …

In this paper, we propose two different free-space-optics (FSO) coverage models for next-
generation high-speed-train communications. To the best of our knowledge, these are the …

High-speed railway (HSR) communications will become a key feature supported by
intelligent transportation communication systems. The increasing demand for HSR …