A Low-Complexity Cross-Domain OAMP Detector for OTFS

Haifeng WEN; Weijie YUAN; Nan WU; Jinming WEN

doi:10.1109/ISWCS56560.2022.9940366

A Low-Complexity Cross-Domain OAMP Detector for OTFS

Haifeng WEN^*, Weijie YUAN, Nan WU, Jinming WEN

^*Corresponding author for this work

Research output: Book Chapters | Papers in Conference Proceedings › Conference paper (refereed) › Research › peer-review

1 Citation (Scopus)

Abstract

Orthogonal time frequency space (OTFS) modulation is an emerging technique for reliable communications in high-mobility environments. Designing low-complexity detectors with good error rate performance is a critical research problem for OTFS. To address this problem, a low-complexity cross-domain orthogonal approximate message passing (OAMP) detector is proposed. In specific, by utilizing the block-diagonal property of the time-domain effective channel matrix, an SVD-based orthogonal linear estimator with low complexity is designed, followed by an orthogonal non-linear estimator performed in the delay-Doppler domain with the help of the cross-domain message passing. We prove that the proposed detector has the potential to achieve Bayes optimality. The state evolution of the cross-domain OAMP detector is also derived. Numerical results show that the proposed detector outperforms classic detectors.

Original language	English
Title of host publication	2022 International Symposium on Wireless Communication Systems, ISWCS 2022
Publisher	IEEE
ISBN (Electronic)	9781665455442
ISBN (Print)	9781665455459
DOIs	https://doi.org/10.1109/ISWCS56560.2022.9940366
Publication status	Published - 2022
Externally published	Yes
Event	2022 International Symposium on Wireless Communication Systems, ISWCS 2022 - Hangzhou, China Duration: 19 Oct 2022 → 22 Oct 2022

Publication series

Name	Proceedings of the International Symposium on Wireless Communication Systems
Volume	2022-October
ISSN (Print)	2154-0217
ISSN (Electronic)	2154-0225

Conference

Conference	2022 International Symposium on Wireless Communication Systems, ISWCS 2022
Country/Territory	China
City	Hangzhou
Period	19/10/22 → 22/10/22

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

Funding

This work is supported in part by National Natural Science Foundation of China under Grant 62101232, and in part by

Keywords

cross-domain
detection
OAMP
orthogonal time frequency space (OTFS)

Access to Document

10.1109/ISWCS56560.2022.9940366

Cite this

@inproceedings{9a04867bd0374ebba68ae0fe0793466d,

title = "A Low-Complexity Cross-Domain OAMP Detector for OTFS",

abstract = "Orthogonal time frequency space (OTFS) modulation is an emerging technique for reliable communications in high-mobility environments. Designing low-complexity detectors with good error rate performance is a critical research problem for OTFS. To address this problem, a low-complexity cross-domain orthogonal approximate message passing (OAMP) detector is proposed. In specific, by utilizing the block-diagonal property of the time-domain effective channel matrix, an SVD-based orthogonal linear estimator with low complexity is designed, followed by an orthogonal non-linear estimator performed in the delay-Doppler domain with the help of the cross-domain message passing. We prove that the proposed detector has the potential to achieve Bayes optimality. The state evolution of the cross-domain OAMP detector is also derived. Numerical results show that the proposed detector outperforms classic detectors.",

keywords = "cross-domain, detection, OAMP, orthogonal time frequency space (OTFS)",

author = "Haifeng WEN and Weijie YUAN and Nan WU and Jinming WEN",

note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 International Symposium on Wireless Communication Systems, ISWCS 2022 ; Conference date: 19-10-2022 Through 22-10-2022",

year = "2022",

doi = "10.1109/ISWCS56560.2022.9940366",

language = "English",

isbn = "9781665455459",

series = "Proceedings of the International Symposium on Wireless Communication Systems",

publisher = "IEEE",

booktitle = "2022 International Symposium on Wireless Communication Systems, ISWCS 2022",

}

WEN, H, YUAN, W, WU, N & WEN, J 2022, A Low-Complexity Cross-Domain OAMP Detector for OTFS. in 2022 International Symposium on Wireless Communication Systems, ISWCS 2022. Proceedings of the International Symposium on Wireless Communication Systems, vol. 2022-October, IEEE, 2022 International Symposium on Wireless Communication Systems, ISWCS 2022, Hangzhou, China, 19/10/22. https://doi.org/10.1109/ISWCS56560.2022.9940366

A Low-Complexity Cross-Domain OAMP Detector for OTFS. / WEN, Haifeng; YUAN, Weijie; WU, Nan et al.
2022 International Symposium on Wireless Communication Systems, ISWCS 2022. IEEE, 2022. (Proceedings of the International Symposium on Wireless Communication Systems; Vol. 2022-October).

Research output: Book Chapters | Papers in Conference Proceedings › Conference paper (refereed) › Research › peer-review

TY - GEN

T1 - A Low-Complexity Cross-Domain OAMP Detector for OTFS

AU - WEN, Haifeng

AU - YUAN, Weijie

AU - WU, Nan

AU - WEN, Jinming

PY - 2022

Y1 - 2022

N2 - Orthogonal time frequency space (OTFS) modulation is an emerging technique for reliable communications in high-mobility environments. Designing low-complexity detectors with good error rate performance is a critical research problem for OTFS. To address this problem, a low-complexity cross-domain orthogonal approximate message passing (OAMP) detector is proposed. In specific, by utilizing the block-diagonal property of the time-domain effective channel matrix, an SVD-based orthogonal linear estimator with low complexity is designed, followed by an orthogonal non-linear estimator performed in the delay-Doppler domain with the help of the cross-domain message passing. We prove that the proposed detector has the potential to achieve Bayes optimality. The state evolution of the cross-domain OAMP detector is also derived. Numerical results show that the proposed detector outperforms classic detectors.

AB - Orthogonal time frequency space (OTFS) modulation is an emerging technique for reliable communications in high-mobility environments. Designing low-complexity detectors with good error rate performance is a critical research problem for OTFS. To address this problem, a low-complexity cross-domain orthogonal approximate message passing (OAMP) detector is proposed. In specific, by utilizing the block-diagonal property of the time-domain effective channel matrix, an SVD-based orthogonal linear estimator with low complexity is designed, followed by an orthogonal non-linear estimator performed in the delay-Doppler domain with the help of the cross-domain message passing. We prove that the proposed detector has the potential to achieve Bayes optimality. The state evolution of the cross-domain OAMP detector is also derived. Numerical results show that the proposed detector outperforms classic detectors.

KW - cross-domain

KW - detection

KW - OAMP

KW - orthogonal time frequency space (OTFS)

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DO - 10.1109/ISWCS56560.2022.9940366

M3 - Conference paper (refereed)

AN - SCOPUS:85142622228

SN - 9781665455459

T3 - Proceedings of the International Symposium on Wireless Communication Systems

BT - 2022 International Symposium on Wireless Communication Systems, ISWCS 2022

PB - IEEE

T2 - 2022 International Symposium on Wireless Communication Systems, ISWCS 2022

Y2 - 19 October 2022 through 22 October 2022

ER -

A Low-Complexity Cross-Domain OAMP Detector for OTFS

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Keywords

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