3 papers
eess.SP2026
On Channel Estimation for Group-Connected Beyond Diagonal RIS Assisted Multi-User MIMO Communication
Rui Wang, Junyuan Gao, Shuowen Zhang +2
Beyond diagonal reconfigurable intelligent surface (BD-RIS) architectures offer superior beamforming gain over conventional diagonal RISs. However, the channel estimation overhead…
eess.SP2025
Low-Overhead Channel Estimation Framework for Beyond Diagonal Reconfigurable Intelligent Surface Assisted Multi-User MIMO Communication
Rui Wang, Shuowen Zhang, Bruno Clerckx +1
Beyond diagonal reconfigurable intelligent surface (BD-RIS) refers to a family of RIS architectures characterized by scattering matrices not limited to being diagonal and enables h…
eess.SP2024
Reducing Channel Estimation and Feedback Overhead in IRS-Aided Downlink System: A Quantize-then-Estimate Approach
Rui Wang, Zhaorui Wang, Liang Liu +2
Channel state information (CSI) acquisition is essential for the base station (BS) to fully reap the beamforming gain in intelligent reflecting surface (IRS)-aided downlink communi…