Author

Kai-Ming Shen

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2026

Channel Estimation for Double-RIS-Assisted MIMO Communication Systems Based on Deep Learning

This letter addresses the channel estimation (CE) problem in a double-reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output (MIMO) wireless communication system. Existing solutions often introduce additional control overhead due to frequent updates of RIS phases and amplitudes. To address thi...

Xiao-Mei Luo, Zhao-Yang Zhu, Zheng-Ming Wu et al. · IEEE Communications Letters · 0 citations

Preprint Sep 2026

Single-RF-Chain Multiuser Semantic Communications via Metasurface Modulation

Field tests show that Semantic Prism substantially improves multiuser semantic reconstruction over the considered baselines and enables a single-RF-chain AP to concurrently serve up to seven users.

Ming-Xiao Li, Wen-Hai Lai, Hei Victor Cheng et al. · 0 citations