A survey that organizes limited CSI feedback for RIS-assisted wireless communications around channel reconstruction and RIS configuration, highlighting structured sparsity and other channel features.
Channel cus- tomization for low-complexity csi acquisition in multi-ris-assisted mimo systems[J]
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Limited Feedback in RIS-Assisted Wireless Communications: Use Cases, Challenges, and Future Directions
A survey that organizes limited CSI feedback for RIS-assisted wireless communications around channel reconstruction and RIS configuration, highlighting structured sparsity and other channel features.