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 …

Reconfigurable intelligent surfaces: Performance assessment through a system-level simulator

B Sihlbom, MI Poulakis… - IEEE Wireless …, 2022 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RISs) are considered a promising technology for
boosting the coverage and for enhancing the spectral efficiency of wireless systems, as well …

RIS-assisted wireless communications: Long-term versus short-term phase shift designs

T Van Chien, LT Tu, W Khalid, H Yu… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) has recently gained significant interest as an
emerging technology for future wireless networks thanks to its potential for improving the …

Leveraging secondary reflections and mitigating interference in multi-IRS/RIS aided wireless networks

TV Nguyen, DN Nguyen, M Di Renzo… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Reconfigurable surfaces (RS) have recently emerged as an enabler for smart radio
environments where they are used to actively tailor/control the radio propagation (eg, to …

A novel SCA-based method for beamforming optimization in IRS/RIS-assisted MU-MISO downlink

V Kumar, R Zhang, M Di Renzo… - IEEE Wireless …, 2022 - ieeexplore.ieee.org
In this letter, we consider the fundamental problem of jointly designing the transmit
beamformers and the phase-shifts of the intelligent reflecting surface (IRS)/reconfigurable …

Deep contextual bandit and reinforcement learning for IRS-assisted MU-MIMO systems

D Pereira-Ruisánchez, Ó Fresnedo… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
The combination of multiple-input multiple-output (MIMO) systems and intelligent reflecting
surfaces (IRSs) is foreseen as a critical enabler of beyond 5G (B5G) and 6G. In this work …

Movable Antennas-Assisted Secure Transmission Without Eavesdroppers' Instantaneous CSI

G Hu, Q Wu, D Xu, K Xu, J Si, Y Cai… - arXiv preprint arXiv …, 2024 - arxiv.org
Movable antenna (MA) technology is highly promising for improving communication
performance, due to its advantage of flexibly adjusting positions of antennas to reconfigure …

Intelligent reflecting surface networks with multiorder-reflection effect: System modeling and critical bounds

Y Liu, L Zhang, F Gao, MA Imran - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In this paper, we model, analyze and optimize the multi-user and multi-order-reflection
(MUMOR) intelligent reflecting surface (IRS) networks. We first derive a complete MUMOR …

Integrated Sensing and Communication with Reconfigurable Intelligent Surfaces

T Ma, Y Xiao, X Lei, M Di Renzo - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
In this contribution, the use of a reconfigurable intelligent surface (RIS) is explored to
accomplish integrated sensing and communication (ISAC) in the multiple-input multiple …

Robust beamforming optimization design for RIS-aided MIMO systems with practical phase shift model and imperfect CSI

M Gao, J Yang, H Li, Y Wang - IEEE Internet of Things Journal, 2023 - ieeexplore.ieee.org
The ideal phase shift model and the acquisition of channel state information (CSI) are
practically difficult to realize in reconfigurable intelligent surface (RIS) assisted …