In this survey paper, we first provide insights on the evolution of radio access networks
(RANs) through investigating the existing paradigms and future trends towards 6G. We then …

In this article, we review the key concepts and the progress in the design of physical-layer
aspects of in-band full-duplex (IBFD) communications. One of the fundamental challenges in …

This work introduces a novel full-duplex hybrid beamforming (FD-HBF) technique for the
millimeter-wave (mmWave) multi-user massive multiple-input multiple-output (MU-mMIMO) …

Abstract The current Sub 6 GHz band is highly occupied and unable to meet the demands of
future wireless data traffic. As the millimeter wave technology is a promising way of …

In-band full-duplex (FD) operation can double the spectral efficiency of massive multiple-
input multiple-output (mMIMO) systems by allowing simultaneous transmission and …

This paper considers the transceiver design in a multiuser multiple-input multiple-output
(MIMO) full-duplex (FD) amplify-and-forward (AF) relay downlink communication system …

In this paper, robust hybrid beamforming designs are developed for full-duplex millimeter
wave multiple-input multiple-output orthogonal frequency division multiplexing (OFDM) …

In this paper, we incorporate mmWave systems with relay techniques to propose a hybrid
transceiver design approach. The existing researches of hybrid transceiver designs mostly …