A survey on channel estimation and practical passive beamforming design for intelligent reflecting surface aided wireless communications

B Zheng, C You, W Mei, R Zhang - … Communications Surveys & …, 2022 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) has emerged as a key enabling technology to realize
smart and reconfigurable radio environment for wireless communications, by digitally …

Nonterrestrial communications assisted by reconfigurable intelligent surfaces

J Ye, J Qiao, A Kammoun… - Proceedings of the IEEE, 2022 - ieeexplore.ieee.org
Nonterrestrial communications have emerged as a key enabler for seamless connectivity in
the upcoming generation networks. This kind of network can support high data rate …

Robust max-min energy efficiency for RIS-aided HetNets with distortion noises

Y Xu, H Xie, Q Wu, C Huang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The energy efficiency (EE) of femtocells is always limited by the surrounding radio
environments in heterogeneous networks (HetNets), such as walls and obstacles. In this …

Intelligent reflecting surface-assisted MU-MISO systems with imperfect hardware: Channel estimation and beamforming design

A Papazafeiropoulos, C Pan… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS), consisting of low-cost passive elements, is a promising
technology for improving the spectral and energy efficiency of the fifth-generation (5G) and …

Joint active and passive beamforming design for reconfigurable intelligent surface enabled integrated sensing and communication

Z Xing, R Wang, X Yuan - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
To exploit the potential of the reconfigurable intelligent surface (RIS) in supporting integrated
sensing and communication (ISAC), this paper proposes a novel joint active and passive …

Performance and optimization of reconfigurable intelligent surface aided THz communications

H Du, J Zhang, K Guan, D Niyato, H Jiao… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
TeraHertz (THz) communications can satisfy the high data rate demand with massive
bandwidth. However, severe path attenuation and hardware imperfection greatly alleviate its …

How much does reconfigurable intelligent surface improve cell-free massive MIMO uplink with hardware impairments?

Y Zhang, H Zhao, W Xia, W Xu… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper investigates the uplink performance of a general cell-free massive multiple-input
multiple-output (CF-mMIMO) system, in which all access points (APs) and user equipments …

RIS assisted wireless powered IoT networks with phase shift error and transceiver hardware impairment

Z Chu, J Zhong, P Xiao, D Mi, W Hao… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Considering a reconfigurable intelligent surface (RIS) aided wireless powered Internet of
Things (WP IoT) network. To address the energy-limitation issue, IoT devices in such a …

Performance analysis of RIS-assisted cell-free massive MIMO systems with transceiver hardware impairments

Y Zhang, W Xia, H Zhao, G Zheng… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Integrating reconfigurable intelligent surface (RIS) into cell-free massive multiple-input
multiple-output (MIMO) is a promising approach to enhance the coverage quality, spectral …

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 …