Near-field multi-source localization in presence of mutual coupling: full-wave verification

Zohreh Ebadi; Amir Masoud Molaei; Hossein Mardani; Muhammad Ali Babar Abbasi; Simon Cotton; Anvar Tukmanov; Okan Yurduseven

doi:10.1109/PIMRC62392.2025.11275262

Near-field multi-source localization in presence of mutual coupling: full-wave verification

School of Electronics, Electrical Engineering and Computer Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The localization of near-field sources is crucial in wireless communications. Practical arrays have mutual coupling between the elements of the array that can significantly affect the accuracy of localization algorithms. In this paper, we utilize a practical array to evaluate the performance of an iterative method based on oblique projection (IMOP) in estimating the location of near-field sources. The conventional two-dimensional (2D) search method for near-field source localization (TSMNSL) employs a 2D search to estimate the direction of arrival (DOA) and range of the source, resulting in a high computational load. In contrast, the IMOP method uses one-dimensional searches, which significantly reduces computational complexity. The results of numerical and full-wave electromagnetic simulations in this paper show that the performance of DOA and range estimations in the IMOP method is comparable to that in the TSMNSL method. The simulation results further indicate that the computational complexity of the IMOP method is at least 49 times lower than that of the TSMNSL method.

Original language	English
Title of host publication	2025 IEEE 36th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings
Publisher	IEEE
Number of pages	6
ISBN (Electronic)	9798350363234
ISBN (Print)	9798350363241
DOIs	https://doi.org/10.1109/PIMRC62392.2025.11275262
Publication status	Published - 12 Dec 2025
Event	IEEE International Symposium on Personal, Indoor and Mobile Radio Communications: IEEE PIMRC 2025 - Istanbul, Turkey Duration: 01 Sept 2025 → 04 Sept 2025 https://pimrc2025.ieee-pimrc.org/

Publication series

Name	IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings
ISSN (Print)	2166-9570
ISSN (Electronic)	2166-9589

Conference

Conference	IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Country/Territory	Turkey
Period	01/09/2025 → 04/09/2025
Internet address	https://pimrc2025.ieee-pimrc.org/

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10.1109/PIMRC62392.2025.11275262Licence: Unspecified

Near-field multi-source localization in presence of mutual coupling: full-wave verification
Copyright 2025 the authors. This is an accepted manuscript distributed under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
Accepted author manuscript, 670 KBLicence: CC BY

Cite this

Ebadi, Z., Molaei, A. M., Mardani, H., Abbasi, M. A. B., Cotton, S., Tukmanov, A., & Yurduseven, O. (2025). Near-field multi-source localization in presence of mutual coupling: full-wave verification. In 2025 IEEE 36th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings ( IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings). IEEE. https://doi.org/10.1109/PIMRC62392.2025.11275262

Ebadi, Zohreh ; Molaei, Amir Masoud ; Mardani, Hossein et al. / Near-field multi-source localization in presence of mutual coupling: full-wave verification. 2025 IEEE 36th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings. IEEE, 2025. ( IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings).

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title = "Near-field multi-source localization in presence of mutual coupling: full-wave verification",

abstract = "The localization of near-field sources is crucial in wireless communications. Practical arrays have mutual coupling between the elements of the array that can significantly affect the accuracy of localization algorithms. In this paper, we utilize a practical array to evaluate the performance of an iterative method based on oblique projection (IMOP) in estimating the location of near-field sources. The conventional two-dimensional (2D) search method for near-field source localization (TSMNSL) employs a 2D search to estimate the direction of arrival (DOA) and range of the source, resulting in a high computational load. In contrast, the IMOP method uses one-dimensional searches, which significantly reduces computational complexity. The results of numerical and full-wave electromagnetic simulations in this paper show that the performance of DOA and range estimations in the IMOP method is comparable to that in the TSMNSL method. The simulation results further indicate that the computational complexity of the IMOP method is at least 49 times lower than that of the TSMNSL method.",

author = "Zohreh Ebadi and Molaei, \{Amir Masoud\} and Hossein Mardani and Abbasi, \{Muhammad Ali Babar\} and Simon Cotton and Anvar Tukmanov and Okan Yurduseven",

year = "2025",

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doi = "10.1109/PIMRC62392.2025.11275262",

language = "English",

isbn = "9798350363241",

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publisher = "IEEE",

booktitle = "2025 IEEE 36th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings",

note = "IEEE International Symposium on Personal, Indoor and Mobile Radio Communications : IEEE PIMRC 2025 ; Conference date: 01-09-2025 Through 04-09-2025",

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Ebadi, Z , Molaei, AM, Mardani, H, Abbasi, MAB , Cotton, S, Tukmanov, A & Yurduseven, O 2025, Near-field multi-source localization in presence of mutual coupling: full-wave verification. in 2025 IEEE 36th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings. IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings, IEEE, IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Turkey, 01/09/2025. https://doi.org/10.1109/PIMRC62392.2025.11275262

Near-field multi-source localization in presence of mutual coupling: full-wave verification. / Ebadi, Zohreh ; Molaei, Amir Masoud; Mardani, Hossein et al.
2025 IEEE 36th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings. IEEE, 2025. ( IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Near-field multi-source localization in presence of mutual coupling: full-wave verification

AU - Ebadi, Zohreh

AU - Molaei, Amir Masoud

AU - Mardani, Hossein

AU - Abbasi, Muhammad Ali Babar

AU - Cotton, Simon

AU - Tukmanov, Anvar

AU - Yurduseven, Okan

PY - 2025/12/12

Y1 - 2025/12/12

N2 - The localization of near-field sources is crucial in wireless communications. Practical arrays have mutual coupling between the elements of the array that can significantly affect the accuracy of localization algorithms. In this paper, we utilize a practical array to evaluate the performance of an iterative method based on oblique projection (IMOP) in estimating the location of near-field sources. The conventional two-dimensional (2D) search method for near-field source localization (TSMNSL) employs a 2D search to estimate the direction of arrival (DOA) and range of the source, resulting in a high computational load. In contrast, the IMOP method uses one-dimensional searches, which significantly reduces computational complexity. The results of numerical and full-wave electromagnetic simulations in this paper show that the performance of DOA and range estimations in the IMOP method is comparable to that in the TSMNSL method. The simulation results further indicate that the computational complexity of the IMOP method is at least 49 times lower than that of the TSMNSL method.

AB - The localization of near-field sources is crucial in wireless communications. Practical arrays have mutual coupling between the elements of the array that can significantly affect the accuracy of localization algorithms. In this paper, we utilize a practical array to evaluate the performance of an iterative method based on oblique projection (IMOP) in estimating the location of near-field sources. The conventional two-dimensional (2D) search method for near-field source localization (TSMNSL) employs a 2D search to estimate the direction of arrival (DOA) and range of the source, resulting in a high computational load. In contrast, the IMOP method uses one-dimensional searches, which significantly reduces computational complexity. The results of numerical and full-wave electromagnetic simulations in this paper show that the performance of DOA and range estimations in the IMOP method is comparable to that in the TSMNSL method. The simulation results further indicate that the computational complexity of the IMOP method is at least 49 times lower than that of the TSMNSL method.

U2 - 10.1109/PIMRC62392.2025.11275262

DO - 10.1109/PIMRC62392.2025.11275262

M3 - Conference contribution

SN - 9798350363241

T3 - IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings

BT - 2025 IEEE 36th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings

PB - IEEE

T2 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications

Y2 - 1 September 2025 through 4 September 2025

ER -

Ebadi Z , Molaei AM, Mardani H, Abbasi MAB , Cotton S, Tukmanov A et al. Near-field multi-source localization in presence of mutual coupling: full-wave verification. In 2025 IEEE 36th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings. IEEE. 2025. ( IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): proceedings). doi: 10.1109/PIMRC62392.2025.11275262

Near-field multi-source localization in presence of mutual coupling: full-wave verification

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