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Beam Squint Exploitation for Linear Phased Arrays in a mmWave Multi-Carrier System

Laurinavicius, Ignas, Zhu, Huiling, Wang, Jiangzhou, Pan, Yijin (2020) Beam Squint Exploitation for Linear Phased Arrays in a mmWave Multi-Carrier System. In: 2019 IEEE Global Communications Conference (Globecom). . IEEE ISBN 978-1-72810-963-3. E-ISBN 978-1-72810-962-6. (doi:10.1109/GLOBECOM38437.2019.9013598) (KAR id:89916)

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https://doi.org/10.1109/GLOBECOM38437.2019.9013598

Abstract

To support millimeter-wave (mmWave) communications successfully, a large number of antennas (in the order of hundreds or thousands) must be implemented to mitigate significant propagation and scattering losses. Designing phased arrays for carrier frequency is a great method for narrowband systems, but the performance degrades significantly with larger bandwidth. We show that as the system bandwidth increases, the beams steer away from the focus direction, which is an effect known as beam squint in wideband systems. In this paper, at first, analysis of capacity is performed for an increasing number of antennas, to show the significance of beam squint. Then, a solution in digital domain is proposed. Conventionally, a single beam would be allocated to a user. By exploiting beam squint effect, in this solution more than one beam can carry a single-user's data, which improves the system's performance significantly, especially when the number of antennas in an array is large and there are multiple users.

Item Type: Conference or workshop item (Paper)
DOI/Identification number: 10.1109/GLOBECOM38437.2019.9013598
Projects: Projects 814956 not found.
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK5101 Telecommunications > TK5103.4 Broadband communication systems
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Huiling Zhu
Date Deposited: 26 Aug 2021 08:11 UTC
Last Modified: 27 Aug 2021 10:15 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/89916 (The current URI for this page, for reference purposes)
Zhu, Huiling: https://orcid.org/0000-0003-3021-5013
Wang, Jiangzhou: https://orcid.org/0000-0003-0881-3594
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