A Novel Dual-Rate OTFS System Resilient to OFO and Doppler Spread

Yujie Liu; Yong Liang Guan; G. David González

doi:10.1109/ICC45041.2023.10279630

A Novel Dual-Rate OTFS System Resilient to OFO and Doppler Spread

Yujie Liu^*, Yong Liang Guan^*, G. David González

^*Corresponding author for this work

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

Abstract

In this paper, a novel dual-rate orthogonal time frequency space (OTFS) system resilient to oscillator frequency offset (OFO) and Doppler spread is presented for high-mobility communications. To the best of the authors' knowledge, this is the first work in OTFS which introduces dual-rate frame and addresses both OFO and Doppler spread. By multiplexing low-rate data blocks at the front and back of OTFS frame, OFO is estimated without requiring extra pilots. Thanks to subspace-based algorithm, OFO is estimated with high accuracy, and the residual small OFO can be jointly estimated with Doppler-spread channel by utilizing a few pilots, without deteriorating performance. Simulation results verify the superior performance of the proposed dual-rate system over existing single-rate systems, in terms of bit error rate (BER), mean-square-error (MSE) of OFO estimation, and MSE of equivalent channel estimation, while featuring lower pilot overhead and power. The BER of the proposed system also approaches its lower bound, which assumes perfect estimation of OFO and Doppler-spread channel.

Original language	English
Title of host publication	ICC 2023 - IEEE International Conference on Communications
Subtitle of host publication	Sustainable Communications for Renaissance
Editors	Michele Zorzi, Meixia Tao, Walid Saad
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1313-1318
Number of pages	6
ISBN (Electronic)	9781538674628
DOIs	https://doi.org/10.1109/ICC45041.2023.10279630
Publication status	Published - 2023
Externally published	Yes
Event	2023 IEEE International Conference on Communications, ICC 2023 - Rome, Italy Duration: May 28 2023 → Jun 1 2023

Publication series

Name	IEEE International Conference on Communications
Volume	2023-May
ISSN (Print)	1550-3607

Conference

Conference	2023 IEEE International Conference on Communications, ICC 2023
Country/Territory	Italy
City	Rome
Period	5/28/23 → 6/1/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

ASJC Scopus Subject Areas

Computer Networks and Communications
Electrical and Electronic Engineering

Keywords

CFO
Doppler spread
doubly selective fading channel
dual-rate data/frame
OFO
OTFS

Access to Document

10.1109/ICC45041.2023.10279630

Cite this

Liu, Y., Guan, Y. L., & David González, G. (2023). A Novel Dual-Rate OTFS System Resilient to OFO and Doppler Spread. In M. Zorzi, M. Tao, & W. Saad (Eds.), ICC 2023 - IEEE International Conference on Communications: Sustainable Communications for Renaissance (pp. 1313-1318). (IEEE International Conference on Communications; Vol. 2023-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICC45041.2023.10279630

Liu, Yujie ; Guan, Yong Liang ; David González, G. / A Novel Dual-Rate OTFS System Resilient to OFO and Doppler Spread. ICC 2023 - IEEE International Conference on Communications: Sustainable Communications for Renaissance. editor / Michele Zorzi ; Meixia Tao ; Walid Saad. Institute of Electrical and Electronics Engineers Inc., 2023. pp. 1313-1318 (IEEE International Conference on Communications).

@inproceedings{5e91665918354c9fbdb967c0a9a6e1de,

title = "A Novel Dual-Rate OTFS System Resilient to OFO and Doppler Spread",

abstract = "In this paper, a novel dual-rate orthogonal time frequency space (OTFS) system resilient to oscillator frequency offset (OFO) and Doppler spread is presented for high-mobility communications. To the best of the authors' knowledge, this is the first work in OTFS which introduces dual-rate frame and addresses both OFO and Doppler spread. By multiplexing low-rate data blocks at the front and back of OTFS frame, OFO is estimated without requiring extra pilots. Thanks to subspace-based algorithm, OFO is estimated with high accuracy, and the residual small OFO can be jointly estimated with Doppler-spread channel by utilizing a few pilots, without deteriorating performance. Simulation results verify the superior performance of the proposed dual-rate system over existing single-rate systems, in terms of bit error rate (BER), mean-square-error (MSE) of OFO estimation, and MSE of equivalent channel estimation, while featuring lower pilot overhead and power. The BER of the proposed system also approaches its lower bound, which assumes perfect estimation of OFO and Doppler-spread channel.",

keywords = "CFO, Doppler spread, doubly selective fading channel, dual-rate data/frame, OFO, OTFS",

author = "Yujie Liu and Guan, {Yong Liang} and {David Gonz{\'a}lez}, G.",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE International Conference on Communications, ICC 2023 ; Conference date: 28-05-2023 Through 01-06-2023",

year = "2023",

doi = "10.1109/ICC45041.2023.10279630",

language = "English",

series = "IEEE International Conference on Communications",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "1313--1318",

editor = "Michele Zorzi and Meixia Tao and Walid Saad",

booktitle = "ICC 2023 - IEEE International Conference on Communications",

address = "United States",

}

Liu, Y, Guan, YL & David González, G 2023, A Novel Dual-Rate OTFS System Resilient to OFO and Doppler Spread. in M Zorzi, M Tao & W Saad (eds), ICC 2023 - IEEE International Conference on Communications: Sustainable Communications for Renaissance. IEEE International Conference on Communications, vol. 2023-May, Institute of Electrical and Electronics Engineers Inc., pp. 1313-1318, 2023 IEEE International Conference on Communications, ICC 2023, Rome, Italy, 5/28/23. https://doi.org/10.1109/ICC45041.2023.10279630

A Novel Dual-Rate OTFS System Resilient to OFO and Doppler Spread. / Liu, Yujie; Guan, Yong Liang; David González, G.
ICC 2023 - IEEE International Conference on Communications: Sustainable Communications for Renaissance. ed. / Michele Zorzi; Meixia Tao; Walid Saad. Institute of Electrical and Electronics Engineers Inc., 2023. p. 1313-1318 (IEEE International Conference on Communications; Vol. 2023-May).

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

TY - GEN

T1 - A Novel Dual-Rate OTFS System Resilient to OFO and Doppler Spread

AU - Liu, Yujie

AU - Guan, Yong Liang

AU - David González, G.

PY - 2023

Y1 - 2023

N2 - In this paper, a novel dual-rate orthogonal time frequency space (OTFS) system resilient to oscillator frequency offset (OFO) and Doppler spread is presented for high-mobility communications. To the best of the authors' knowledge, this is the first work in OTFS which introduces dual-rate frame and addresses both OFO and Doppler spread. By multiplexing low-rate data blocks at the front and back of OTFS frame, OFO is estimated without requiring extra pilots. Thanks to subspace-based algorithm, OFO is estimated with high accuracy, and the residual small OFO can be jointly estimated with Doppler-spread channel by utilizing a few pilots, without deteriorating performance. Simulation results verify the superior performance of the proposed dual-rate system over existing single-rate systems, in terms of bit error rate (BER), mean-square-error (MSE) of OFO estimation, and MSE of equivalent channel estimation, while featuring lower pilot overhead and power. The BER of the proposed system also approaches its lower bound, which assumes perfect estimation of OFO and Doppler-spread channel.

AB - In this paper, a novel dual-rate orthogonal time frequency space (OTFS) system resilient to oscillator frequency offset (OFO) and Doppler spread is presented for high-mobility communications. To the best of the authors' knowledge, this is the first work in OTFS which introduces dual-rate frame and addresses both OFO and Doppler spread. By multiplexing low-rate data blocks at the front and back of OTFS frame, OFO is estimated without requiring extra pilots. Thanks to subspace-based algorithm, OFO is estimated with high accuracy, and the residual small OFO can be jointly estimated with Doppler-spread channel by utilizing a few pilots, without deteriorating performance. Simulation results verify the superior performance of the proposed dual-rate system over existing single-rate systems, in terms of bit error rate (BER), mean-square-error (MSE) of OFO estimation, and MSE of equivalent channel estimation, while featuring lower pilot overhead and power. The BER of the proposed system also approaches its lower bound, which assumes perfect estimation of OFO and Doppler-spread channel.

KW - CFO

KW - Doppler spread

KW - doubly selective fading channel

KW - dual-rate data/frame

KW - OFO

KW - OTFS

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DO - 10.1109/ICC45041.2023.10279630

M3 - Conference contribution

AN - SCOPUS:85178295401

T3 - IEEE International Conference on Communications

SP - 1313

EP - 1318

BT - ICC 2023 - IEEE International Conference on Communications

A2 - Zorzi, Michele

A2 - Tao, Meixia

A2 - Saad, Walid

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2023 IEEE International Conference on Communications, ICC 2023

Y2 - 28 May 2023 through 1 June 2023

ER -

Liu Y, Guan YL, David González G. A Novel Dual-Rate OTFS System Resilient to OFO and Doppler Spread. In Zorzi M, Tao M, Saad W, editors, ICC 2023 - IEEE International Conference on Communications: Sustainable Communications for Renaissance. Institute of Electrical and Electronics Engineers Inc. 2023. p. 1313-1318. (IEEE International Conference on Communications). doi: 10.1109/ICC45041.2023.10279630

A Novel Dual-Rate OTFS System Resilient to OFO and Doppler Spread

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

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