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Author

Xiao Li

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2026

STAR-RIS-Assisted MIMO-MAC Over Spatially Correlated Rician: Sum-Rate Analysis and Optimization

Simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RIS) can intelligently control the electromagnetic waves in the whole space through its passive components, thereby enhancing the wireless propagation environment, which is considered to be a promising technology. This paper studies th...

Ming-Yang Niu, Jun Zhang, Kai-Zhe Xu et al. · 0 citations
2026

Semi-Blind Channel Estimation for RIS-Assisted mmWave Systems Based on Diffusion Models

Channel estimation in reconfigurable intelligent surface (RIS)-assisted millimeter-wave (mmWave) systems is challenging due to the high-dimensional nature of cascaded channels. Existing semi-blind schemes mitigate pilot overhead by exploiting unknown data symbols. Nevertheless, these schemes often fail to fully leverag...

Kai Lu, Heng-Tao He, Wei-Jie Jin et al. · 0 citations

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