To enable user diversity while balancing tradeoffs between cost and flexibility, we exploit
hybrid analog-digital beamforming for multi-user mobile systems. By combining array and …

In this paper, we investigate the effect of cooperative double Intelligent reflecting surfaces
(IRS) in improving the energy efficiency (EE) of a multi-user multiple-input multiple-output …

This paper considers the discrete-Fourier-transform-based hybrid beamforming multiuser
system and studies the use of analog beam selection schemes. We first analyze the uplink …

In this paper, we investigate the interference coordination for downlink full-dimension
multiple-input multiple-output (FD-MIMO) systems with device-to-device (D2D) …

This paper investigate the downlink transmission, especially the interference coordination
for the cell-edge users in multi-cell full-dimension multiple-input multiple-output (FD-MIMO) …

Recently, in a massive multiple-input multipleoutput (MIMO) system, deep learning (DL)-
based beamforming method has been proposed for reducing the overhead associated with …

Intelligent reflecting surface/Reconfigurable intelligent surface (IRS/RIS) and cell-free
networks have been proposed as revolutionary technologies for beyond fifth-generation …

In this paper, we investigate the sum rate performance of a downlink transmission scheme
for massive multiple-input multiple-output (MIMO) systems with a two-dimensional (2D) …

Reconfigurable intelligent surface (RIS) has been developed as a promising approach to
enhance the performance of fifth-generation (5G) systems through intelligently reconfiguring …

Opportunistic beamforming (OBF) is a promising technique in multiuser multiple-input-
multiple-output (MIMO) communications, which attracts many attentions. Because of …