Domain generalization in machine learning models for wireless communications: Concepts, state-of-the-art, and open issues

M Akrout, A Feriani, F Bellili… - … Surveys & Tutorials, 2023 - ieeexplore.ieee.org
Data-driven machine learning (ML) is promoted as one potential technology to be used in
next-generation wireless systems. This led to a large body of research work that applies ML …

A comprehensive review of metamaterials/metasurface-based MIMO antenna array for 5G millimeter-wave applications

S Kumar, H Singh - Journal of Superconductivity and Novel Magnetism, 2022 - Springer
Metasurfaces are artificial structures that can display uncommon and exotic electromagnetic
properties like negative permittivity and permeability. Metamaterials along with metasurfaces …

ScatterMIMO: Enabling virtual MIMO with smart surfaces

M Dunna, C Zhang, D Sievenpiper… - Proceedings of the 26th …, 2020 - dl.acm.org
In the last decade, the bandwidth expansion and MIMO spatial multiplexing have promised
to increase data throughput by orders of magnitude. However, we are yet to enjoy such …

Energy-efficient optimization in distributed massive MIMO systems for slicing eMBB and URLLC services

B Liu, P Zhu, J Li, D Wang, X You - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The fifth generation (5G) communication system aims to support diverse services such as
enhanced mobile broadband (eMBB) and ultra-reliable and low-latency communication …

Performance of network-assisted full-duplex for cell-free massive MIMO

D Wang, M Wang, P Zhu, J Li, J Wang… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
In this paper, the spectral efficiency of network assisted full-duplex communications (NAFD)
in cell-free (CF) massive multiple-input multiple-output (MIMO) network with imperfect …

Massive synchrony in distributed antenna systems

EG Larsson - IEEE Transactions on Signal Processing, 2024 - ieeexplore.ieee.org
Distributed antennas must be phase-calibrated (phase-synchronized) for certain operations,
such as reciprocity-based joint coherent downlink beamforming, to work. We use rigorous …

Hybrid spherical-and planar-wave modeling and DCNN-powered estimation of terahertz ultra-massive MIMO channels

Y Chen, L Yan, C Han - IEEE Transactions on Communications, 2021 - ieeexplore.ieee.org
The Terahertz band is envisioned to meet the demanding 100 Gbps data rates for 6G
wireless communications. Aiming at combating the distance limitation problem with low …

Implementation of a cloud-based cell-free distributed massive MIMO system

D Wang, C Zhang, Y Du, J Zhao… - IEEE communications …, 2020 - ieeexplore.ieee.org
With the ever increasing requirements for ultra efficiency, advanced technologies such as
massive multiple-input multiple-output (MIMO) have been considered. By offering more …

Area spectral efficiency and area energy efficiency of massive MIMO cellular systems

Y **n, D Wang, J Li, H Zhu, J Wang… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
This paper investigates the performance of massive multiple-input multiple-output (MIMO)
cellular systems with pilot contamination. We derive a closed-form approximation of the area …

Enabling cell-free massive MIMO systems with wireless millimeter wave fronthaul

U Demirhan, A Alkhateeb - IEEE Transactions on Wireless …, 2022 - ieeexplore.ieee.org
Cell-free massive MIMO systems have promising data rate and coverage gains. These
systems, however, typically rely on fiber based fronthaul for the communication between the …