A GRU-based channel predictor plus mobility-aware user grouping reduces CSI and over-the-air aggregation error in RIS-assisted federated learning under imperfect, time-varying channels.
Csi acquisition in ris-assisted mobile communication systems,
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Joint Channel Estimation and Dynamics-Aware Grouping for Time-Varying RIS-Assisted OTA Federated Learning
A GRU-based channel predictor plus mobility-aware user grouping reduces CSI and over-the-air aggregation error in RIS-assisted federated learning under imperfect, time-varying channels.