Sparse array synthesis including mutual coupling for mu-mimo average capacity maximization

N Amani, A Farsaei, SR Aghdam… - … on Antennas and …, 2022 - ieeexplore.ieee.org
A hybrid optimization algorithm, including mutual coupling (MC), is proposed to synthesize
an irregular sparse array (ISA) for average capacity maximization in a multiuser multiple …

User selection for massive MIMO under line-of-sight propagation

RS Chaves, MVS Lima, E Cetin… - IEEE Open Journal of …, 2022 - ieeexplore.ieee.org
This paper provides a review of user selection algorithms for massive multiple-input multiple-
output (MIMO) systems under the line-of-sight (LoS) propagation model. Although the LoS …

Low-Complexity Variational Bayesian Inference Based Groupwise Detection for Massive MIMO Uplinks

Z Qiu, S Zhou, M Zhao, W Zhou - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper proposes a low-complexity groupwise detection scheme for massive multiple-
input multiple-output (MIMO) systems based on two key features of massive MIMO channels …

Uniform linear arrays with optimized inter-element spacing for LOS massive MIMO

A Farsaei, N Amani, R Maaskant… - IEEE …, 2020 - ieeexplore.ieee.org
In this letter, a uniform linear array (ULA) is proposed for line-of-sight massive multiple-input-
multiple-output (MIMO). It is assumed that the number of antennas is fixed. For a given ULA …

DropNet: An improved dropping algorithm based on neural networks for line-of-sight massive MIMO

A Farsaei, A Sheikh, U Gustavsson, A Alvarado… - IEEE …, 2021 - ieeexplore.ieee.org
In line-of-sight massive MIMO, the downlink channel vectors of few users may become
highly correlated. This high correlation limits the sum-rates of systems employing linear …

An improved dropping algorithm for line-of-sight massive MIMO with Tomlinson–Harashima precoding

A Farsaei, A Alvarado, FMJ Willems… - IEEE …, 2019 - ieeexplore.ieee.org
One of the problems in line-of-sight massive MIMO is that a few users can have correlated
channel vectors. To alleviate this problem, a dropping algorithm has been proposed in the …

A low-complexity hybrid linear and nonlinear precoder for line-of-sight massive MIMO with max-min power control

A Farsaei, U Gustavsson, A Alvarado… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In line-of-sight (LOS) massive MIMO, there is a nonnegligible probability that the channel
vectors of some users become correlated. In these correlated scenarios, nonlinear …

An optimization-based user scheduling framework for mmWave massive MU-MIMO systems

V Palhares, C Studer - 2022 IEEE 23rd International Workshop …, 2022 - ieeexplore.ieee.org
We propose a novel user equipment (UE) scheduling framework for millimeter-wave
(mmWave) massive multiuser (MU) multiple-input multiple-output (MIMO) wireless systems …

An improved successive filter-based dropping algorithm for massive MIMO with max-min power control

A Farsaei, U Gustavsson, A Alvarado… - IEEE …, 2021 - ieeexplore.ieee.org
In line-of-sight massive MIMO, there are use cases where the channel vectors of some users
become highly correlated. Highly correlated users lead to a large reduction in the sum-rate …

User selection scheme based on reference frames

M Li, Y Huang, H Wang, Z Zhao - 2022 - researchsquare.com
For a multi-user (MU) massive multiple-input multiple-output (MIMO) system, its total
throughput is directly related to the degree of mutual interference among user's channel …