This paper presents a comprehensive survey on acquisition, tracking, and pointing (ATP)
mechanisms used in free-space optical (FSO) communications systems. ATP mechanisms …

Free space optical (FSO) communication technology, also known as optical wireless
communications, has regained a great interest over the last few years. In some cases, FSO …

There has been a growing interconnection across the world owing to various multimedia
applications and services. Fixed wireless access (FWA) is an attractive wireless solution for …

Communication-based train control (CBTC) systems are widely applied in the world. The
primary functions are carried out by wireless communications, which implement the …

When the distance between the source and the target is long, the signal will be affected by
atmospheric turbulence, weather conditions and obstacles, which cannot support the …

The Internet of Vehicles (IoV), as a development and complement of the Internet of Thing,
has attracted extensive attention and is expected to play a crucial role in human society with …

We propose a new wireless paradigm for railways–transmissive metasurface (TMS) assisted
communications. It compensates for the Doppler shift brought by high mobility and reduces …

With the development of wireless communication, people have put forward higher
requirements for train-ground communications in the high-speed railway (HSR) scenarios …

The curvature of tunnels introduces an extra loss in the wave propagation. A simulation and
measurement study are performed on the straight and the curved tunnels to investigate the …

In the evolution of railway mobile communications from Long Term Evolution for Railway
(LTE-R) to the future 5th Generation Wireless System (5G), the rapid increase in the number …