Abstract
Terahertz (THz) band communications and integrated sensing and communications (ISAC) are two main facets of the sixth generation wireless networks. In order to compensate the severe attenuation, the THz wireless systems employ large arrays, wherein the near-field beam-squint severely degrades the beamforming accuracy. Contrary to prior works that examine only either narrowband ISAC beamforming or far-field models, we introduce an alternating optimization technique for hybrid beamforming design in near-field THz-ISAC scenario. We also propose an efficient approach to compensate near-field beam-squint via baseband beamformers. Via numerical simulations, we show that the proposed approach achieves satisfactory spectral efficiency performance while accurately estimating the near-field beam- formers and mitigating the beam-squint without additional hardware components.
Original language | English (US) |
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Title of host publication | 2023 IEEE Globecom Workshops, GC Wkshps 2023 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 1117-1122 |
Number of pages | 6 |
ISBN (Electronic) | 9798350370218 |
DOIs | |
State | Published - 2023 |
Event | 2023 IEEE Globecom Workshops, GC Wkshps 2023 - Kuala Lumpur, Malaysia Duration: Dec 4 2023 → Dec 8 2023 |
Publication series
Name | 2023 IEEE Globecom Workshops, GC Wkshps 2023 |
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Conference
Conference | 2023 IEEE Globecom Workshops, GC Wkshps 2023 |
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Country/Territory | Malaysia |
City | Kuala Lumpur |
Period | 12/4/23 → 12/8/23 |
Bibliographical note
Publisher Copyright:© 2023 IEEE.
Keywords
- beamforming
- Integrated sensing and communications
- massive MIMO
- near-field
- terahertz
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering
- Communication