Terahertz-Band Direction Finding With Beam-Split and Mutual Coupling Calibration

Elbir, Ahmet M.; Kumar Vijay Mishra; CHATZINOTAS, Symeon

doi:10.1109/LAWP.2023.3313350

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Terahertz-Band Direction Finding With Beam-Split and Mutual Coupling Calibration

Elbir, Ahmet M.; Kumar Vijay Mishra; CHATZINOTAS, Symeon

2023 • In IEEE Antennas and Wireless Propagation Letters, 22 (11), p. 2720-2724

Peer Reviewed verified by ORBi

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https://hdl.handle.net/10993/58275

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10.1109/LAWP.2023.3313350

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Keywords :

Array calibration, beam split, DoA estimation, mutual coupling, subspace-based harmonic retrieval, Terahertz

Abstract :

[en] Terahertz (THz) band is currently envisioned as the key building block to achieving the future sixth generation (6G) wireless systems. The ultra-wide bandwidth and very narrow beamwidth of THz systems offer the next order of magnitude in user densities and multi-functional behavior. However, wide bandwidth results in a frequency-dependent beampattern causing the beams generated at different subcarriers split and point to different directions. Furthermore, mutual coupling degrades the system’s performance. This paper studies the compensation of both beam-split and mutual coupling for direction-of-arrival (DoA) estimation by modeling the beam-split and mutual coupling as an array imperfection. We propose a subspace-based approach using multiple signal classification with CalibRated for bEAam-split and Mutual coupling (CREAM-MUSIC) algorithm for this purpose. Via numerical simulations, we show the proposed CREAM-MUSIC approach accurately estimates the DoAs in the presence of beam-split and mutual coupling.

Disciplines :

Computer science

Author, co-author :

Elbir, Ahmet M.; Senior Member, IEEE

Kumar Vijay Mishra; Senior Member, IEEE

CHATZINOTAS, Symeon ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom

External co-authors :

yes

Language :

English

Title :

Terahertz-Band Direction Finding With Beam-Split and Mutual Coupling Calibration

Publication date :

01 November 2023

Journal title :

IEEE Antennas and Wireless Propagation Letters

ISSN :

1536-1225

eISSN :

1548-5757

Publisher :

Institute of Electrical and Electronics Engineers, United States - New York

Volume :

Issue :

Pages :

2720-2724

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

https://cris.technion.ac.il/en/publications/terahertz-band-direction-finding-with-beam-split-and-mutual-coupl

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since 30 November 2023

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