An overview of signal processing techniques for RIS/IRS-aided wireless systems

C Pan, G Zhou, K Zhi, S Hong, T Wu… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
In the past as well as present wireless communication systems, the wireless propagation
environment is regarded as an uncontrollable black box that impairs the received signal …

Toward smart wireless communications via intelligent reflecting surfaces: A contemporary survey

S Gong, X Lu, DT Hoang, D Niyato… - … Surveys & Tutorials, 2020 - ieeexplore.ieee.org
This paper presents a literature review on recent applications and design aspects of the
intelligent reflecting surface (IRS) in the future wireless networks. Conventionally, the …

Active RIS vs. passive RIS: Which will prevail in 6G?

Z Zhang, L Dai, X Chen, C Liu, F Yang… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
As a revolutionary paradigm for controlling wireless channels, reconfigurable intelligent
surfaces (RISs) have emerged as a candidate technology for future 6G networks. However …

Active reconfigurable intelligent surface-aided wireless communications

R Long, YC Liang, Y Pei… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Reconfigurable Intelligent Surface (RIS) is a promising solution to reconfigure the wireless
environment in a controllable way. To compensate for the double-fading attenuation in the …

Intelligent reflecting surface-assisted multi-user MISO communication: Channel estimation and beamforming design

H Alwazani, A Kammoun, A Chaaban… - IEEE Open Journal …, 2020 - ieeexplore.ieee.org
The concept of reconfiguring wireless propagation environments using intelligent reflecting
surfaces (IRS) s has recently emerged, where an IRS comprises of a large number of …

Beam focusing for near-field multiuser MIMO communications

H Zhang, N Shlezinger, F Guidi… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Large antenna arrays and high-frequency bands are two key features of future wireless
communication systems. The combination of large-scale antennas with high transmission …

Energy efficiency and spectral efficiency tradeoff in RIS-aided multiuser MIMO uplink transmission

L You, J Xiong, DWK Ng, C Yuen… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
The emergence of reconfigurable intelligent surfaces (RISs) enables us to establish
programmable radio wave propagation that caters for wireless communications, via …

Deep residual learning for channel estimation in intelligent reflecting surface-assisted multi-user communications

C Liu, X Liu, DWK Ng, J Yuan - IEEE Transactions on Wireless …, 2021 - ieeexplore.ieee.org
Channel estimation is one of the main tasks in realizing practical intelligent reflecting surface-
assisted multi-user communication (IRS-MUC) systems. However, different from traditional …

Channel estimation for reconfigurable intelligent surface aided multi-user mmWave MIMO systems

J Chen, YC Liang, HV Cheng… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Channel acquisition is one of the main challenges for the deployment of reconfigurable
intelligent surface (RIS) aided communication systems. This is because an RIS has a large …

Reconfigurable intelligent surface-assisted non-orthogonal multiple access

G Yang, X Xu, YC Liang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) is a revolutionary technology to achieve spectrum-,
energy-, and cost-efficient wireless networks. This paper considers an RIS-assisted …