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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Kun Chai

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2026

Correlation-Aware Adaptive Element Grouping for Discrete-Phase RIS in High-Mobility Scenarios

This letter proposes an adaptive element grouping method for discrete-phase reconfigurable intelligent surfaces (RISs) serving a high-mobility user equipment (UE) to maximize the average net spectral efficiency. A drift-aware channel state information (CSI) aging model is derived for the RIS-to-UE link, enabling pilot...

Yilin Wu, Shuqi Tang, Kun Chai et al. · 0 citations

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