RIS-aided MIMO systems with hardware impairments: Robust beamforming design and analysis

J Wang, S Gong, Q Wu, S Ma - IEEE Transactions on Wireless …, 2023 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) has been anticipated to be a novel cost-effective
technology to improve the performance of future wireless systems. In this paper, we …

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 …

Joint transmit beamforming and phase shift design for reconfigurable intelligent surface assisted MIMO systems

J Wang, H Wang, Y Han, S Jin… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) becomes an increasingly important technology in
sixth-generation (6G). The key aspect of RIS is smartly configuring the wireless propagation …

Low-complexity channel estimation and passive beamforming for RIS-assisted MIMO systems relying on discrete phase shifts

J An, C Xu, L Gan, L Hanzo - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Reconfigurable intelligent surfaces (RISs) are capable of enhancing the capacity of wireless
networks at a low cost. In practical RIS-assisted communication systems, the acquisition of …

Robust hybrid beamforming design for multi-RIS assisted MIMO system with imperfect CSI

Z Chen, J Tang, XY Zhang, Q Wu… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) has been developed as a promising approach to
enhance the performance of fifth-generation (5G) systems through intelligently reconfiguring …

Robust transmission design for RIS-aided communications with both transceiver hardware impairments and imperfect CSI

Z Peng, Z Chen, C Pan, G Zhou… - IEEE Wireless …, 2021 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) or intelligent reflecting surface (IRS) has recently
been envisioned as one of the most promising technologies in the future sixth-generation …

Robust beamforming design for RIS-aided cell-free systems with CSI uncertainties and capacity-limited backhaul

J Yao, J Xu, W Xu, DWK Ng, C Yuen… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this paper, we consider the robust beamforming design in a reconfigurable intelligent
surface (RIS)-aided cell-free (CF) system considering the channel state information (CSI) …

Beamforming optimization for active ris-aided multiuser communications with hardware impairments

Z Peng, Z Zhang, C Pan, M Di Renzo… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
In this paper, we consider an active reconfigurable intelligent surface (RIS) to assist the
multiuser downlink transmission in the presence of practical hardware impairments (HWIs) …

Robust design for intelligent reflecting surfaces assisted MISO systems

J Zhang, Y Zhang, C Zhong… - IEEE communications …, 2020 - ieeexplore.ieee.org
In this work, we study the statistically robust beamforming design for an intelligent reflecting
surfaces (IRS) assisted multiple-input single-output (MISO) wireless system under imperfect …

Joint design of hybrid beamforming and reflection coefficients in RIS-aided mmWave MIMO systems

R Li, B Guo, M Tao, YF Liu, W Yu - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This paper considers a reconfigurable intelligent surface (RIS)-aided millimeter wave
(mmWave) downlink communication system where hybrid analog-digital beamforming is …