A survey on hybrid beamforming techniques in 5G: Architecture and system model perspectives

I Ahmed, H Khammari, A Shahid… - … Surveys & Tutorials, 2018 - ieeexplore.ieee.org
The increasing wireless data traffic demands have driven the need to explore suitable
spectrum regions for meeting the projected requirements. In the light of this, millimeter wave …

Channel estimation techniques for millimeter-wave communication systems: Achievements and challenges

K Hassan, M Masarra, M Zwingelstein… - IEEE Open Journal of …, 2020 - ieeexplore.ieee.org
The fifth-generation (5G) of cellular networks and beyond requires massive connectivity,
high data rates, and low latency. Millimeter-wave (mmWave) communications is a key 5G …

Prospective multiple antenna technologies for beyond 5G

J Zhang, E Björnson, M Matthaiou… - IEEE Journal on …, 2020 - ieeexplore.ieee.org
Multiple antenna technologies have attracted much research interest for several decades
and have gradually made their way into mainstream communication systems. Two main …

Millimeter wave communications for future mobile networks

M Xiao, S Mumtaz, Y Huang, L Dai, Y Li… - IEEE Journal on …, 2017 - ieeexplore.ieee.org
Millimeter wave (mmWave) communications have recently attracted large research interest,
since the huge available bandwidth can potentially lead to the rates of multiple gigabit per …

Deep CNN-based channel estimation for mmWave massive MIMO systems

P Dong, H Zhang, GY Li, IS Gaspar… - IEEE Journal of …, 2019 - ieeexplore.ieee.org
For millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems,
hybrid processing architecture is usually used to reduce the complexity and cost, which …

Terahertz massive MIMO with holographic reconfigurable intelligent surfaces

Z Wan, Z Gao, F Gao, M Di Renzo… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
We propose a holographic version of a reconfigurable intelligent surface (RIS) and
investigate its application to terahertz (THz) massive multiple-input multiple-output systems …

Spatial-and frequency-wideband effects in millimeter-wave massive MIMO systems

B Wang, F Gao, S Jin, H Lin… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
When there are a large number of antennas in massive MIMO systems, the transmitted
wideband signal will be sensitive to the physical propagation delay of electromagnetic …

Millimeter-wave NOMA with user grouping, power allocation and hybrid beamforming

L Zhu, J Zhang, Z Xiao, X Cao, DO Wu… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
This paper investigates the application of non-orthogonal multiple access in millimeter-Wave
communications (mmWave-NOMA). Particularly, we consider downlink transmission with a …

Sparse channel estimation and hybrid precoding using deep learning for millimeter wave massive MIMO

W Ma, C Qi, Z Zhang, J Cheng - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Channel estimation and hybrid precoding are considered for multi-user millimeter wave
massive multi-input multi-output system. A deep learning compressed sensing (DLCS) …

Channel estimation for extremely large-scale MIMO: Far-field or near-field?

M Cui, L Dai - IEEE Transactions on Communications, 2022 - ieeexplore.ieee.org
Extremely large-scale multiple-input-multiple-output (XL-MIMO) is promising to meet the
high rate requirements for future 6G. To realize efficient precoding, accurate channel state …