This paper proposes a novel architecture with a framework that dynamically activates the
optimal number of radio frequency (RF) chains used to implement hybrid beamforming in a …

Millimeter-Wave (mmWave) systems fit out an incomparable chance for fulfilling the
increasing data rate demands on Fifth Generation (5G) wireless networks. Beamspace with …

Recent research considers the application of a lens antenna array in order to provide
efficient beam selection in beamspace massive MIMO. Achieving the advantages of this …

Millimeter wave based massive MIMO system is a significant technology to meet the
proliferating demand for datarate and spectral efficiency. Millimeter can offer Giga bits of …

The spatial division represents an efficient approach to increasing data throughput in
wireless networks. It can be implemented by spanning the channel in spatial domain with …

The millimeter wave beamspace multi-user MIMO communication system suffers from high
radio frequency complexity. However, RF complexity can be reduced by deploying a beam …

Abstract Knowledge of the propagation channel is critical to exploit the full benefit of multiple-
input multiple-output (MIMO) techniques in millimeter wave (mmWave) cellular systems …

6.1 Conclusions A mmWave beamspace MU-MIMO downlink system is considered to the
following chapters in this thesis. A “QR-based” beam selection algorithm to reduce the …