The recent concept of beamspace MIMO can utilize beam selection to reduce the number of
required radio-frequency (RF) chains in mmWave massive MIMO systems without obvious …

We investigate beam training and allocation for multiuser millimeter wave massive MIMO
systems. An orthogonal pilot-based beam training scheme is first developed to reduce the …

This paper considers intelligent reflecting surface (IRS)-aided single-user (SU) massive
multiple-input multiple-output (mMIMO) millimeter wave (mmWave) downlink communication …

Network densification, massive multiple-input multiple-output (MIMO), and millimeter-wave
(mmWave) bands have recently emerged as some of the physical layer enablers for the …

Millimeter wave (mmWave) massive MIMO can achieve orders of magnitude increase in
spectral and energy efficiency, and it usually exploits the hybrid analog and digital …

This letter investigates beam alignment for multi-user millimeter wave (mmWave) massive
multi-input multi-output system. Unlike the existing works using machine learning (ML), an …

In large scale multiple-input multiple-output (MIMO) systems (or massive MIMO systems),
hybrid beamforming is a promising technique due to its versatile tradeoff between …

In this article, multiuser beam training based on hierarchical codebook for millimeter wave
massive multi-input multi-output is investigated, where the base station (BS) simultaneously …

The millimeter-wave (mm-wave) massive multiple-input multiple-output (MIMO) system has
gained much attention for its considerable improvement in system throughput. However, the …

In this paper, we propose a hybridly connected structure for hybrid beamforming in
millimeter-wave (mmWave) massive MIMO systems, where the antenna arrays at the …