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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.SP2021
A New Channel Estimation Strategy in Intelligent Reflecting Surface Assisted Networks
Rui Wang, Liang Liu, Shuowen Zhang +1
Channel estimation is the main hurdle to reaping the benefits promised by the intelligent reflecting surface (IRS), due to its absence of ability to transmit/receive pilot signals…