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Author

Tao Jiang

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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
2026

Distributed Routing for LEO Satellite Networks: A Multi-Agent Deep Reinforcement Learning Approach With State Information Lag

Multi-agent deep reinforcement learning (MADRL) offers a promising solution for routing in low Earth orbit (LEO) satellite networks. However, large inter-satellite propagation delays lead to severe state information lag in agent interactions, giving rise to decision biases and degraded routing timeliness. To this end,...

Wei-Dan Liu, Tong Liu, Li-Xia Xiao et al. · 0 citations

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