The fifth-generation (5G) of cellular networks and beyond requires massive connectivity,
high data rates, and low latency. Millimeter-wave (mmWave) communications is a key 5G …

Extremely large-scale multiple-input-multiple-output (XL-MIMO) is promising to meet the
high rate requirements for future 6G. To realize efficient precoding, accurate channel state …

The adoption of a reconfigurable intelligent surface (RIS) for downlink multi-user
communication from a multi-antenna base station is investigated in this paper. We develop …

In this letter, we consider the problem of channel estimation for large intelligent metasurface
(LIM) assisted massive multiple-input multiple-output (MIMO) systems. The main challenge …

The advancement of various research sectors such as Internet of Things (IoT), Machine
Learning, Data Mining, Big Data, and Communication Technology has shed some light in …

This paper investigates the use of a Passive Intelligent Mirrors (PIM) to operate a multi-user
MISO downlink communication. The transmit powers and the mirror reflection coefficients …

Holographic MIMO communications, enabled by large-scale antenna arrays with quasi-
continuous apertures, are potential technology for spectrum efficiency improvement …

Millimeter-wave massive multiple-input multiple-output (MIMO) can use a lens antenna array
to considerably reduce the number of radio frequency (RF) chains, but channel estimation is …

With the rapid development of autonomous driving technologies, it becomes difficult to
reconcile the conflict between ever-increasing demands for high process rate in the …

With recent advances on the dense low-Earth orbit (LEO) constellation, the LEO satellite
network has become one promising solution for providing global coverage for Internet-of …