A Tucker2-BALS estimator plus a CNN-AR predictor achieves low-overhead, high-accuracy CSI acquisition and forecasting for fully- and group-connected BD-RIS MIMO systems.
Beyond Diagonal Reconfigu rable Intelligent Surfaces: From Transmitting and Reflecting Mod es to Single- , Group-, and Fully-Connected Architectures,
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Efficient Channel Prediction for Beyond Diagonal RIS-Assisted MIMO Systems with Channel Aging
A Tucker2-BALS estimator plus a CNN-AR predictor achieves low-overhead, high-accuracy CSI acquisition and forecasting for fully- and group-connected BD-RIS MIMO systems.