Rate-splitting transform coding with closed-form MSE analysis achieves near-optimal CSI feedback under basis mismatch in FDD massive MIMO with reduced complexity.
FDD mas sive MIMO: How to optimally combine UL pilot and limited DL CSI feedback ?
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CSI Feedback Under Basis Mismatch: Rate-Splitting Transform Coding for FDD Massive MIMO
Rate-splitting transform coding with closed-form MSE analysis achieves near-optimal CSI feedback under basis mismatch in FDD massive MIMO with reduced complexity.