Hierarchical Beam Alignment in Single-User MIMO Single-Carrier Frequency Division Multiple Access Terahertz Communication Systems

Wu Y, Koch J, Vossiek M, Gerstacker W (2021)

Publication Type: Conference contribution

Publication year: 2021

Publisher: Institute of Electrical and Electronics Engineers Inc.

Conference Proceedings Title: 2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings

Event location: Virtual, Online

ISBN: 9781728194417

DOI: 10.1109/ICCWorkshops50388.2021.9473531

Abstract

Single-carrier frequency division multiple access (SC-FDMA) is a promising technique for high data rate Terahertz (THz) communications in future beyond 5G systems. Beam alignment (BA) is considered as a mandatory solution to establish a reliable communication link in SC-FDMA THz communication. However, existing BA methods introduce a large latency in searching for the optimal beam. In this paper, we propose a multi-armed bandit algorithm referred to as hierarchical beam alignment (HBA) for single-user SC-FDMA THz systems to reduce the beam alignment latency. HBA utilizes a hierarchical structure in the adopted codebook and the prior knowledge regarding the frequency-selective fading of the channel to speed up the BA process. Both theoretical analysis and simulation results illustrate that HBA converges to the optimal beam with high probability. The latency introduced by HBA is significantly lower compared to an exhaustive search method.

Authors with CRIS profile

Yifei Wu Lehrstuhl für Digitale Übertragung Johannes Koch Lehrstuhl für Hochfrequenztechnik Martin Vossiek Lehrstuhl für Hochfrequenztechnik Wolfgang Gerstacker Technische Fakultät

How to cite

APA:

Wu, Y., Koch, J., Vossiek, M., & Gerstacker, W. (2021). Hierarchical Beam Alignment in Single-User MIMO Single-Carrier Frequency Division Multiple Access Terahertz Communication Systems. In 2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings. Virtual, Online: Institute of Electrical and Electronics Engineers Inc..

MLA:

Wu, Yifei, et al. "Hierarchical Beam Alignment in Single-User MIMO Single-Carrier Frequency Division Multiple Access Terahertz Communication Systems." Proceedings of the 2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021, Virtual, Online Institute of Electrical and Electronics Engineers Inc., 2021.

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