Channel Feedback Based on AoD-Adaptive Subspace Codebook in FDD Massive MIMO Systems
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DOI: 10.1109/tcomm.2018.2849755
Abstract: Channel feedback is essential in frequency division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems. Unfortunately, prior work on multiuser MIMO has shown that the feedback overhead scales linearly with the number of base station (BS)… read more here.
Keywords: subspace codebook; aod adaptive; channel feedback; codebook ... See more keywords