Multiuser hybrid analog/digital beamforming for relatively large-scale antenna arrays
作者： Jian Geng , Zaixue Wei , Xianling Wang , Wei Xiang , Dacheng Yang
DOI: 10.1109/GLOCOMW.2013.6824973
关键词:
摘要: Power consumption and costs of the analog front-end (AFE) chains are often not negligible for large-scale antenna array systems. A low-complexity hardware architecture is to use a number AFE that less than antennas. Beamforming this involves both digital beamforming, which termed hybrid analog/digital beamforming. This paper focuses on optimization beamforming minimize transmit power subject signal-to-interference-plus-noise-ratio (SINR) constraints. Properties feasibility optimum considered problem derived. Numerical algorithm based semi-definite positive (SDP) relaxation proposed in an attempt solve problem. simulations show performance highly related correlation channel coefficients different subcarriers.
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