A near-field spatial non-stationary channel model for planar and modular curved XL-MIMO arrays is derived, an AE-aided AMP estimator with replica bound is proposed, and joint array-geometry and hybrid-precoding optimization is performed to maximize downlink sum rate.
Rate-splitting multiple access for near-field communications with imperfect CSIT and SIC,
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A Framework of Near-Field Communication with Different Array Geometries: Analysis, Optimization, and General Channel Estimation Algorithms Based on Deep Learning
A near-field spatial non-stationary channel model for planar and modular curved XL-MIMO arrays is derived, an AE-aided AMP estimator with replica bound is proposed, and joint array-geometry and hybrid-precoding optimization is performed to maximize downlink sum rate.