A Low-Complexity Krylov-Beamspace Beamforming for FDD Massive MIMO.
ICC 2023-IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS（2023）
关键词
beamspace beamforming matrix,called beam-Krylov subspace,channel estimation efforts,channel reciprocity,compensated channel covariance matrix,Discrete Fourier Transformation codebook,downlink grid-of-beam,efficient beamspace beamforming algorithms,FDD massive MIMO,frequency 6.0 GHz,Frequency Division Duplex massive MIMO,low induced overhead,low-complexity Krylov-beamspace beamforming,massive Multiple Input multiple Output systems,measured channel covariance matrix,novel Krylov-beamspace beamforming scheme,scattered channels,standard beamspace beamforming schemes,subsequent precoding complexity,uplink channel covariance matrix,uplink sounding
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