RIS-Aided OTFS: A Novel ISAC Scheme for Achieving Real-Time Communication and Sensing

Li, Z.; Yuan, Weijie; Jing, Zexuan; Mu, Junsheng; Wu, Nan; Lin, Zhiyun

doi:10.1145/3597065.3597448

Proceedings of the 2nd Workshop on Integrated Sensing and Communications for Metaverse 2023

DOI: 10.1145/3597065.3597448

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RIS-Aided OTFS: A Novel ISAC Scheme for Achieving Real-Time Communication and Sensing

Z. Li

Weijie Yuan

Zexuan Jing

et al.

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2023

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Integrated Sensing and Communication via Orthogonal Time Frequency Space Signaling with Hybrid Message Passing Detection and Fractional Parameter Estimation

Zhang,

Cai,

Liu

2023

Sensors

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For the orthogonal time frequency space (OTFS) modulation, we generally multiplex symbols on a new type of carrier waveform in the delay-Doppler (DD) domain. These two parameters can be used to infer the range (R) and velocity (V) of the communication user and sensing target; thus, it is natural for the OTFS to be implemented in integrated sensing and communication (ISAC). A framework for ISAC based on OTFS modulation is proposed in this paper, in which the matched filter scheme with fractional parameter estimation is implemented for radar sensing. In addition, the hybrid message passing (MP) detection algorithm is developed for OTFS symbol demodulation. According to the simulation results, fractional DD shifts associated with multiple targets can be accurately obtained through the proposed framework. Meanwhile, the bit error rate under the proposed detector is less than 10−4 when the signal-to-noise ratio is high enough.

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Integrated Sensing and Communication via Orthogonal Time Frequency Space Signaling with Hybrid Message Passing Detection and Fractional Parameter Estimation

Zhang,

Cai,

Liu

2023

Sensors

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RIS-Aided OTFS: A Novel ISAC Scheme for Achieving Real-Time Communication and Sensing

Cited by 1 publication

References 13 publications

Integrated Sensing and Communication via Orthogonal Time Frequency Space Signaling with Hybrid Message Passing Detection and Fractional Parameter Estimation

Integrated Sensing and Communication via Orthogonal Time Frequency Space Signaling with Hybrid Message Passing Detection and Fractional Parameter Estimation

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