Hybrid combining based on selective activation of double constant phase shifter

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dc.contributor.authorDoan, Anh N. N.
dc.contributor.authorBahingayi, Eduard E.
dc.contributor.authorLee, Kyungchun
dc.date.accessioned2023-10-12T14:01:36Z
dc.date.available2023-10-12T14:01:36Z
dc.date.issued2021
dc.descriptionFull text article. Also available at https://doi.org/10.1109/ACCESS.2021.3120137en_US
dc.description.abstractIn this paper, we propose a new uplink hybrid beamforming architecture for multi-user multiple-input–multiple-output (MU-MIMO) millimeter-wave (mmWave) systems. The proposed architecture employs constant phase shifters (CPSs) to control the phases of the signals in conjunction with double switches for signal selection in the radio frequency (RF) beamforming part. By using double switches to approximate the optimal double variable phase shifter (VPS)-based scheme, the proposed scheme can achieve near-optimal sum rates when the number of CPSs is large enough. In addition, with the support of the active/inactive switches, it selectively combines the antenna signals, which can further improve the sum rate while reducing power consumption. The simulation results show that the proposed scheme outperforms conventional VPS-based and fully digital combiners in terms of energy efficiency.en_US
dc.identifier.citationDoan, A. N., Bahingayi, E. E., & Lee, K. (2021). Hybrid Combining Based on Selective Activation of Double Constant Phase Shifters. IEEE Access, 9, 142012-142019.en_US
dc.identifier.otherDOI: https://doi.org/10.1109/ACCESS.2021.3120137
dc.identifier.otherURL: https://ieeexplore.ieee.org/abstract/document/9570328
dc.identifier.urihttp://hdl.handle.net/20.500.12661/4194
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.subjectMassive MIMOen_US
dc.subjectHybrid beamformingen_US
dc.subjectmmWaveen_US
dc.subjectDouble constant phase shiftersen_US
dc.subjectSelective activationen_US
dc.subjectRadio frequencyen_US
dc.subjectArray signal processingen_US
dc.titleHybrid combining based on selective activation of double constant phase shifteren_US
dc.typeArticleen_US
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