Hybrid Beamforming for 5G and Beyond Millimeter-Wave Systems: A Holistic View

Zhang J, Yu X, Letaief KB (2020)

Publication Type: Journal article

Publication year: 2020

Journal

IEEE Open Journal of the Communications Society Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 1

Pages Range: 77-91

DOI: 10.1109/OJCOMS.2019.2959595

Abstract

Millimeter-wave (mm-wave) communication is a key technology for future wireless networks. To combat significant path loss and exploit the abundant mm-wave spectrum, effective beamforming is crucial. Nevertheless, conventional fully digital beamforming techniques are inapplicable, as they demand a separate radio frequency (RF) chain for each antenna element, which is costly and consumes too much energy. Hybrid beamforming is a cost-effective alternative, which can significantly reduce the hardware cost and power consumption by employing a small number of RF chains. This paper presents a holistic view on hybrid beamforming for 5G and beyond mm-wave systems, based on a new taxonomy for different hardware structures. We take a pragmatic approach and compare different proposals from three key aspects: 1) hardware efficiency, i.e., the required hardware components; 2) computational efficiency of the associated beamforming algorithm; and 3) achievable spectral efficiency, a main performance indicator. Through systematic comparisons, the interplay and trade-off among these three design aspects are demonstrated, and promising candidates for hybrid beamforming in future wireless networks are identified.

Authors with CRIS profile

Xianghao Yu Lehrstuhl für Digitale Übertragung

Involved external institutions

Hong Kong Polytechnic University (PolyU) CN China (CN) University of Hong Kong (HKU) / 香港大學 HK Hong Kong (HK)

How to cite

APA:

Zhang, J., Yu, X., & Letaief, K.B. (2020). Hybrid Beamforming for 5G and Beyond Millimeter-Wave Systems: A Holistic View. IEEE Open Journal of the Communications Society, 1, 77-91. https://dx.doi.org/10.1109/OJCOMS.2019.2959595

MLA:

Zhang, Jun, Xianghao Yu, and Khaled B. Letaief. "Hybrid Beamforming for 5G and Beyond Millimeter-Wave Systems: A Holistic View." IEEE Open Journal of the Communications Society 1 (2020): 77-91.

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