Non-Terrestrial Networks (NTN) are expected to be a critical component of 6th Generation
(6G) networks, providing ubiquitous, continuous, and scalable services. Satellites emerge as …

With the emergence of communication services with stringent requirements such as
autonomous driving or on-flight Internet, the sixth-generation (6G) wireless network is …

The need for wider coverage and high-performance quality of mobile networks is critical due
to the maturity of Internet penetration in today's society. One of the primary drivers of this …

Urban Rail Transit Systems (URTS) have increasingly become the backbone of modern
public transportation, attributed to their unparalleled convenience, high efficiency, and …

With the explosive growth of mobile data, the demand of high-speed railway (HSR)
passengers for broadband wireless access services urgently needs the support of ultra-high …

The rapid development of high-speed railways (HSRs) puts forward high requirements on
the corresponding communication system. Millimeter wave (mmWave) can be a promising …

Currently, millimeter wave technology is used to carry a large number of 5G-R wireless
services, such as train control information and passenger demand. This will make the train …

Nowadays, the dependency on high-performance digital mobile connectivity is not limited to
human usage but also the intelligent objects increasingly deployed to serve the needs of …

Compared with railway communication service requirements on the mainline, requirements
in hotspots such as stations and yards are more complicated in terms of service types as …

This paper presents an overview of the challenges and state-of-the-art physical layer
enhancement designs for next-generation railway communication, also known as high …