Channel estimation in massive MIMO under hardware non-linearities: Bayesian methods versus deep learning

ÖT Demir, E Björnson - IEEE Open Journal of the …, 2019 - ieeexplore.ieee.org
This paper considers the joint impact of non-linear hardware impairments at the base station
(BS) and user equipments (UEs) on the uplink performance of single-cell massive MIMO …

Practical hybrid beamforming for millimeter wave massive MIMO full duplex with limited dynamic range

CK Sheemar, CK Thomas… - IEEE Open Journal of the …, 2022 - ieeexplore.ieee.org
Full Duplex (FD) radio has emerged as a promising solution to increase the data rates by up
to a factor of two via simultaneous transmission and reception in the same frequency band …

Massive MIMO hybrid precoding for LEO satellite communications with twin-resolution phase shifters and nonlinear power amplifiers

L You, X Qiang, KX Li, CG Tsinos… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
The massive multiple-input multiple-output (MIMO) transmission technology has recently
attracted much attention in the non-geostationary, eg, low earth orbit (LEO) satellite …

Distortion-aware linear precoding for massive MIMO downlink systems with nonlinear power amplifiers

SR Aghdam, S Jacobsson, U Gustavsson… - arXiv preprint arXiv …, 2020 - arxiv.org
We introduce a framework for linear precoder design over a massive multiple-input multiple-
output downlink system in the presence of nonlinear power amplifiers (PAs). By studying the …

Deep Learning-based Joint Optimization of Closed-Loop FDD MmWave Massive MIMO: Pilot Adaptation, CSI Feedback, and Beamforming

J Jee, H Park - IEEE Transactions on Vehicular Technology, 2023 - ieeexplore.ieee.org
To alleviate severe attenuation of millimeter-wave (mmWave) channel, massive multi-input
multi-output (MIMO) in which a large number of antennas are utilized in base station (BS) is …

Precoding design and power control for SINR maximization of MISO system with nonlinear power amplifiers

J Jee, G Kwon, H Park - IEEE Transactions on Vehicular …, 2020 - ieeexplore.ieee.org
In practical multi-antenna systems, the design of precoding and power control is not
straightforward even for multi-input single-output (MISO) systems because of the distortion …

Joint precoding and power allocation for multiuser MIMO system with nonlinear power amplifiers

J Jee, G Kwon, H Park - IEEE Transactions on Vehicular …, 2021 - ieeexplore.ieee.org
As the demand to alleviate the high cost and energy consumption problem in cellular
communication systems grows, research on ways to compensate the hardware impairments …

Cooperative beamforming with nonlinear power amplifiers: A deep learning approach for distributed networks

J Jee, G Kwon, H Park - IEEE Transactions on Vehicular …, 2022 - ieeexplore.ieee.org
Network densification is essential to enhance the areal capacity of future wireless networks,
for which the user-centric network is a promising solution. In the perspective of network …

A distortion nullforming precoder in massive MIMO systems with nonlinear hardware

N Kolomvakis, M Bavand, I Bahceci… - IEEE Wireless …, 2022 - ieeexplore.ieee.org
In this letter, we propose a novel nullforming precoding scheme to cancel the distortion from
multiple-input–multiple-output (MIMO) base stations with nonlinear hardware towards …

Exploiting Power Amplifier Nonlinearities through Symbol-Level Interference Exploitation Precoding in the MU-MIMO Downlink

G Wei, A Li, C Masouros - IEEE Transactions on Wireless …, 2024 - ieeexplore.ieee.org
In this paper, we study the interference exploitation precoding in the presence of distortion
from nonlinear power amplifiers (PAs) in multi-user multiple-input single-output (MU-MISO) …