Rate-Distortion-Function-Inspired CSI Feedback for FDD Massive MIMO-OFDM Communications
In this paper, we investigate the downlink channel state information (CSI) feedback for frequency-division duplexing (FDD) massive multiple-input multiple-output (MIMO) communications with orthogonal frequency division multiplexing (OFDM) modulation. By formulating CSI feedback as a lossy compression problem, we study...