Seung-Woo Ko

Low-Rank Prior-Guided Rank-One Sensing for Efficient CSI Feedback

Downlink channel state information (CSI) feedback is essential for frequency-division duplex massive MIMO, yet the feedback overhead grows rapidly with the numbers of antennas and subcarriers. To reduce this overhead, most deep learning approaches compress CSI by treating it as a generic image, leaving its low-rank mul...