Radar Sensing with OTFS: Embracing ISI and ICI to Surpass the Ambiguity Barrier

Musa Furkan Keskin; Henk Wymeersch; Alex Alvarado

doi:10.1109/ICCWorkshops50388.2021.9473534

Radar Sensing with OTFS: Embracing ISI and ICI to Surpass the Ambiguity Barrier

Musa Furkan Keskin, Henk Wymeersch, Alex Alvarado

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

22 Citations (Scopus)

Abstract

Orthogonal time frequency space (OTFS) is a promising alternative to orthogonal frequency division multiplexing (OFDM) in high-mobility beyond 5G communications. In this paper, we consider the problem of radar sensing with OTFS joint radar-communications waveform and derive a novel OTFS radar signal model by explicitly taking into account the inter- symbol interference (ISI) and inter-carrier interference (ICI) effects. On the basis of the new model, we show how ISI and ICI phenomena can be turned into an advantage to surpass the maximum unambiguous detection limits in range and velocity, arising in existing OFDM and OTFS radar systems. Moreover, we design a generalized likelihood ratio test based detector/estimator that can embrace ISI and ICI effects. Simulation results illustrate the potential of embracing ISI/ICI and demonstrate its superior detection and estimation performance over conventional base-lines.

Original language	English
Title of host publication	2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	6
ISBN (Electronic)	978-1-7281-9441-7
DOIs	https://doi.org/10.1109/ICCWorkshops50388.2021.9473534
Publication status	Published - Jun 2021
Event	2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Virtual, Online Duration: 14 Jun 2021 → 23 Jun 2021

Conference

Conference	2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021
City	Virtual, Online
Period	14/06/21 → 23/06/21

Bibliographical note

Funding Information:
ACKNOWLEDGMENTS This work is supported by the EU Marie Curie Actions Individual Fellowship project OTFS-RADCOM, grant nr. 888913, Vinnova grant 2018-01929 and the European Commission through the H2020 project Hexa-X (Grant Agreement no. 101015956). The work of A. Alvarado is supported by the Dutch Technology Foundation TTW, which is part of the Netherlands Organisation for Scientific Research (NWO), under the project Integrated Cooperative Automated Vehicles (i-CAVE).

Keywords

inter-carrier interference
inter-symbol interference
joint radar-communications
OFDM
OTFS

Access to Document

10.1109/ICCWorkshops50388.2021.9473534

Cite this

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title = "Radar Sensing with OTFS: Embracing ISI and ICI to Surpass the Ambiguity Barrier",

abstract = "Orthogonal time frequency space (OTFS) is a promising alternative to orthogonal frequency division multiplexing (OFDM) in high-mobility beyond 5G communications. In this paper, we consider the problem of radar sensing with OTFS joint radar-communications waveform and derive a novel OTFS radar signal model by explicitly taking into account the inter- symbol interference (ISI) and inter-carrier interference (ICI) effects. On the basis of the new model, we show how ISI and ICI phenomena can be turned into an advantage to surpass the maximum unambiguous detection limits in range and velocity, arising in existing OFDM and OTFS radar systems. Moreover, we design a generalized likelihood ratio test based detector/estimator that can embrace ISI and ICI effects. Simulation results illustrate the potential of embracing ISI/ICI and demonstrate its superior detection and estimation performance over conventional base-lines.",

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Keskin, MF, Wymeersch, H & Alvarado, A 2021, Radar Sensing with OTFS: Embracing ISI and ICI to Surpass the Ambiguity Barrier. in 2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings., 9473534, Institute of Electrical and Electronics Engineers, 2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021, Virtual, Online, 14/06/21. https://doi.org/10.1109/ICCWorkshops50388.2021.9473534

Radar Sensing with OTFS: Embracing ISI and ICI to Surpass the Ambiguity Barrier. / Keskin, Musa Furkan; Wymeersch, Henk; Alvarado, Alex.
2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings. Institute of Electrical and Electronics Engineers, 2021. 9473534.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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N1 - Funding Information: ACKNOWLEDGMENTS This work is supported by the EU Marie Curie Actions Individual Fellowship project OTFS-RADCOM, grant nr. 888913, Vinnova grant 2018-01929 and the European Commission through the H2020 project Hexa-X (Grant Agreement no. 101015956). The work of A. Alvarado is supported by the Dutch Technology Foundation TTW, which is part of the Netherlands Organisation for Scientific Research (NWO), under the project Integrated Cooperative Automated Vehicles (i-CAVE).

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N2 - Orthogonal time frequency space (OTFS) is a promising alternative to orthogonal frequency division multiplexing (OFDM) in high-mobility beyond 5G communications. In this paper, we consider the problem of radar sensing with OTFS joint radar-communications waveform and derive a novel OTFS radar signal model by explicitly taking into account the inter- symbol interference (ISI) and inter-carrier interference (ICI) effects. On the basis of the new model, we show how ISI and ICI phenomena can be turned into an advantage to surpass the maximum unambiguous detection limits in range and velocity, arising in existing OFDM and OTFS radar systems. Moreover, we design a generalized likelihood ratio test based detector/estimator that can embrace ISI and ICI effects. Simulation results illustrate the potential of embracing ISI/ICI and demonstrate its superior detection and estimation performance over conventional base-lines.

AB - Orthogonal time frequency space (OTFS) is a promising alternative to orthogonal frequency division multiplexing (OFDM) in high-mobility beyond 5G communications. In this paper, we consider the problem of radar sensing with OTFS joint radar-communications waveform and derive a novel OTFS radar signal model by explicitly taking into account the inter- symbol interference (ISI) and inter-carrier interference (ICI) effects. On the basis of the new model, we show how ISI and ICI phenomena can be turned into an advantage to surpass the maximum unambiguous detection limits in range and velocity, arising in existing OFDM and OTFS radar systems. Moreover, we design a generalized likelihood ratio test based detector/estimator that can embrace ISI and ICI effects. Simulation results illustrate the potential of embracing ISI/ICI and demonstrate its superior detection and estimation performance over conventional base-lines.

KW - inter-carrier interference

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M3 - Conference contribution

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BT - 2021 IEEE International Conference on Communications Workshops, ICC Workshops 2021 - Proceedings

PB - Institute of Electrical and Electronics Engineers

Y2 - 14 June 2021 through 23 June 2021

ER -

Radar Sensing with OTFS: Embracing ISI and ICI to Surpass the Ambiguity Barrier

Abstract

Conference

Bibliographical note

Keywords

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i-CAVE: Integrated Cooperative Automated Vehicles

Cite this

Radar Sensing with OTFS: Embracing ISI and ICI to Surpass the Ambiguity Barrier

Abstract

Conference

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Projects

i-CAVE: Integrated Cooperative Automated Vehicles

Cite this