Zero-forcing and codebook based beamforming scheme for practical usage of multiuser MIMO-OFDM with uplink channel sounding

Abstract

Since the concept of the multiuser multiple input multiple output (MU-MIMO) system has been introduced for enhancement of capacity and flexibility, it has been accepted in various wireless standards. To enjoy the benefits of the MU-MIMO system, full or partial channel information is necessary at the transmitter, but how to use the full or partial feedback… (More)
DOI: 10.1002/dac.2918

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