Bivariate pilot optimization for compressed channel estimation in RIS-assisted multiuser MISO-OFDM systems

R Jiang, Z Fei, S Huang, X Wang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In reconfigurable intelligent surface (RIS)-assisted wireless communication systems,
channel estimation is of paramount importance to unleash the full advantage of the high …

Matrix-calibration-based cascaded channel estimation for reconfigurable intelligent surface assisted multiuser MIMO

H Liu, X Yuan, YJA Zhang - IEEE Journal on Selected Areas in …, 2020 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) is envisioned to be an essential component of the
paradigm for beyond 5G networks as it can potentially provide similar or higher array gains …

Joint CFO and channel estimation for RIS-aided multi-user massive MIMO systems

S Jeong, A Farhang, NS Perović… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Accurate channel estimation is essential to achieve the performance gains promised by the
use of reconfigurable intelligent surfaces (RISs) in wireless communications. In the uplink of …

Parallel factor decomposition channel estimation in RIS-assisted multi-user MISO communication

L Wei, C Huang, GC Alexandropoulos… - 2020 IEEE 11th sensor …, 2020 - ieeexplore.ieee.org
Reconfigurable Intelligent Surfaces (RISs) have been recently considered as an energy-
efficient solution for future wireless networks due to their fast and low power configuration …

Channel estimation for RIS-empowered multi-user MISO wireless communications

L Wei, C Huang, GC Alexandropoulos… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
Reconfigurable Intelligent Surfaces (RISs) have been recently considered as an energy-
efficient solution for future wireless networks due to their fast and low-power configuration …

Sparse Bayesian learning based channel extrapolation for RIS assisted MIMO-OFDM

X Xu, S Zhang, F Gao, J Wang - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) is a revolutionary technology and can be used to
assist communication systems by adaptively manipulating the wireless environment. In this …

Channel tracking for RIS-enabled multi-user SIMO systems in time-varying wireless channels

J Yuan, GC Alexandropoulos, E Kofidis… - 2022 IEEE …, 2022 - ieeexplore.ieee.org
Estimation of channel state information, balancing accuracy and pilot overhead, is critical for
Single-Input Multiple-Output communication (SIMO) systems empowered by the emerging …

Joint channel estimation and signal recovery in RIS-assisted multi-user MISO communications

L Wei, C Huang, GC Alexandropoulos… - 2021 IEEE Wireless …, 2021 - ieeexplore.ieee.org
Reconfigurable Intelligent Surfaces (RISs) have been recently considered as an energy-
efficient solution for future wireless networks. Their dynamic and low-power configuration …

Efficient channel estimation for RIS-aided MIMO communications with unitary approximate message passing

Y Guo, P Sun, Z Yuan, C Huang, Q Guo… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) is very promising for wireless networks to achieve
high energy efficiency, extended coverage, improved capacity, massive connectivity, etc. To …

Separate channel estimation with hybrid RIS-aided multi-user communications

S Yang, W Lyu, D Wang, Z Zhang - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
As a solution to the thorny problem of the acquisition of separate channels with the presence
of the passive reconfigurable intelligent surface (RIS), the hybrid RIS architecture with …