3 papers
cs.IT2026
CSI Compression for Massive MIMO-OFDM: Mismatch-Aware Rate-Distortion Trade-offs
Bumsu Park, Youngmok Park, Chanho Park +1
We study channel state information (CSI) compression for wideband frequency division duplex massive multiple-input multiple-output (MIMO) when the base station (BS) reconstructs CS…
cs.IT2026
Fundamental Limits of CSI Compression in FDD Massive MIMO
Bumsu Park, Youngmok Park, Chanho Park +1
Channel state information (CSI) feedback in frequency-division duplex (FDD) massive multiple-input multiple-output (MIMO) systems is fundamentally limited by the high dimensionalit…
cs.IT2026
Hierarchical Subcode Ensemble Decoding of Polar Codes
Yubeen Jo, Geon Choi, Chanho Park +1
Subcode-ensemble decoders improve iterative decoding by running multiple decoders in parallel over carefully chosen subcodes, increasing the likelihood that at least one decoder av…