Parallel attention-based transformer for channel estimation in RIS-aided 6G wireless communications
Accurate and fast channel estimation is one of the challenging problems in achieving
practical reconfigurable intelligent surface (RIS)-aided wireless communication. However, a …
practical reconfigurable intelligent surface (RIS)-aided wireless communication. However, a …
Near-field channel reconstruction in sensing RIS-assisted wireless communication systems
A reconfigurable intelligent surface (RIS) with active elements is an augmented version of an
RIS. By equipping all or part of RIS elements with signal processing capabilities, the channel …
RIS. By equipping all or part of RIS elements with signal processing capabilities, the channel …
Channel estimation for RIS-aided MIMO systems in MmWave wireless communications with a few active elements
Accurate channel estimation poses a significant challenge in the reconfigurable intelligent
surface (RIS)-aided millimeter-wave (mmWave) wireless communication system. The fully …
surface (RIS)-aided millimeter-wave (mmWave) wireless communication system. The fully …
Sparse Kalman Filter-Based Channel Estimation for RIS-Aided Millimeter Wave Multiple-Input Multiple-Output Systems
J Zhang, Y Su, D Qian - IEEE Access, 2023 - ieeexplore.ieee.org
The acquisition of accurate channel state information is critical for enhancing the
transmission quality and energy efficiency of reconfigurable intelligent surface-aided …
transmission quality and energy efficiency of reconfigurable intelligent surface-aided …
Efficient Two-Level Block-Structured Sparse Bayesian Learning-Based Channel Estimation for RIS-Assisted MIMO IoT Systems
Reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output (MIMO) has
recently emerged as a promising candidate to improve the energy and spectral efficiency of …
recently emerged as a promising candidate to improve the energy and spectral efficiency of …
Low Complexity RIS Update in OFDM Systems via RIS Element Allocation
In this paper, we propose reconfigurable intelligent surface (RIS) element allocation
algorithms that maximize the minimum rate or sum rate in a multi-user (MU)-multiple-input …
algorithms that maximize the minimum rate or sum rate in a multi-user (MU)-multiple-input …
Innovative Joint CFO and Channel Estimation for RIS-Aided OFDM Systems
TT Lin, FH Hwang - IEEE Wireless Communications Letters, 2024 - ieeexplore.ieee.org
In this letter, we introduce an innovative approach to concurrently estimate the carrier
frequency offset (CFO) and channel within reconfigurable intelligent surface-aided …
frequency offset (CFO) and channel within reconfigurable intelligent surface-aided …
Active Element Arrangement for Deep Learning-Based CSI Prediction in IRS-Assisted Systems
Y Tsuchiya, N Suga, K Uruma, M Fujisawa - IEEE Access, 2024 - ieeexplore.ieee.org
Recently, intelligent reflecting surface (IRS) components have garnered attention as a
technology for advancing next-generation wireless communications. For effective IRS …
technology for advancing next-generation wireless communications. For effective IRS …
Energy efficiency maximization for active RIS-aided integrated sensing and communication
This paper investigates energy-efficient communication within an integrated sensing and
communication system. The system employs a dual-function radar-communication base …
communication system. The system employs a dual-function radar-communication base …
Separate Channel Estimation and Data Detection for Semi-Passive RIS-Empowered Massive MIMO
Y Xiong, S Ding, S Sun, L Liu, Z Zhang… - IEEE …, 2024 - ieeexplore.ieee.org
This letter investigates the channel estimation and data detection for semi-passive
reconfigurable intelligent surface (RIS) assisted millimeter wave massive multiple-input …
reconfigurable intelligent surface (RIS) assisted millimeter wave massive multiple-input …