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 …

Communication-based train control (CBTC) systems are automated train control systems
based on continuous and bidirectional train-ground communications. CBTC is the direction …

Channel estimation for an orthogonal frequency-division multiplexing (OFDM) broadband
system over a doubly selective channel is very challenging. This is mainly due to the …

Recently, the mobile relay technique has been discussed to support communication
services for Long-Term Evolution Advanced (LTE-A) high-speed rail networks. In the …

The heterogeneous network architecture based on control/user (C/U) plane split is a
research hot spot in the fifth generation (5G) communication system. This new architecture …

For high-speed rail networks, data transmission suffers from severe penetration loss and
when the train moves from one base station to another, a large number of User Equipments …

Over a doubly selective channel, broadband transmission systems face challenges in
channel estimation and equalization. High mobility causes inter-carrier interference (ICI) …

With the rapid developments of fifth generation (5G) mobile communication networks in
recent years, different use cases can now significantly benefit from 5G networks. One such …

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 …