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- W4290996496 abstract "Massive MIMO and hybrid beamforming are among the key physical layer technologies for the next generation wireless systems. In the last stage of the hybrid beamforming, the goal is to generate sharp beam with maximal and preferably uniform gain. We highlight the shortcomings of uniform linear arrays (ULAs) in generating such perfect beams, i.e., beams with maximal uniform gain and sharp edges, and propose a solution based on a novel antenna configuration, namely, twin-ULA (TULA). Consequently, we propose two antenna configurations based on TULA: Delta and Star. We pose the problem of finding the beamforming coefficients as a continuous optimization problem for which we find the analytical closed-form solution by a quantization/aggregation method. Thanks to the derived closed-form solution the beamforming coefficients can be easily obtained with low complexity. Through numerical analysis, we illustrate the effectiveness of the proposed antenna structure and beamforming algorithm to reach close-to-perfect beams." @default.
- W4290996496 created "2022-08-13" @default.
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- W4290996496 date "2022-05-16" @default.
- W4290996496 modified "2023-09-24" @default.
- W4290996496 title "Codebook Design for Hybrid Beamforming in 5G Systems" @default.
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- W4290996496 doi "https://doi.org/10.1109/icc45855.2022.9838693" @default.
- W4290996496 hasPublicationYear "2022" @default.
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