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eess.SP2026
Blind Beamforming for Intelligent Reflecting Surfaces: A Gradient Bandit Approach
Wenhai Lai, Mingxiao Li, Kaiming Shen
The beamforming problem of intelligent reflecting surface (IRS) has been extensively considered from an optimization perspective assuming that channel state information (CSI) is av…
eess.SP2026
Single-RF-Chain Multiuser Semantic Communications via Metasurface Modulation
Mingxiao Li, Wenhai Lai, Hei Victor Cheng +1
Multiuser transmission with multiple radio-frequency (RF) chains enables flexible spatial multiplexing but incurs increased hardware complexity and power consumption. A programmabl…
cs.IT2026
Eliminating Blind Spots from Wireless Network by Metasurface: A Blind Approach
Wenhai Lai, Mingxiao Li, Kaiming Shen +2
Deploying metasurfaces (MTSs) to eliminate wireless blind spots requires jointly determining the physical placement of MTSs and the meta-atom phase shifts. Existing methods typical…