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OFDM integrated waveform design for joint radar and communication

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Abstract

Due to the alleviated spectral congestion through spectrum sharing, integrating radar and communication has raised increasing attention in both academic and industrial fields. This paper proposes several orthogonal frequency division multiplexing (OFDM) based waveform design approaches for joint cooperation of radar sensing and communication transmission. A mathematical model of comprehensive weight selection, communication modulation mode and phase coding sequence is proposed, aiming at the problems of high peak sidelobe and large envelope fluctuation in OFDM integrated waveform, two feasible schemes to achieve superior performance in terms of ambiguity function are investigated, including the iterative optimization of the peak sidelobe ratio (PSLR) and peak to average power ratio (PAPR) optimization method based on random phase coding, which can improve the range resolution without degrading Doppler resolution. Simulation results show that the proposed waveform optimization method can improve PSLR below −30dB and PAPR below 2, verifying the effectiveness of the designed integrated waveform in simultaneous radar and communication operations.

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Funding

This work is supported in part by the National Natural Science Foundation of China (NSFC) (Grant 62071476 and 61921001), in part by the Science and Technology Innovation Program of Hunan Province (Grant 2020RC2041), and in part by Research Program of National University of Defense Technology (Grant ZK20-33). The authors have no conflicts of interest to declare that are relevant to the content of this article. The data that support the findings of this study are available from National University of Defense Technology but restrictions apply to the availability of these data, which were used under license for the current study and form the part of an ongoing study, so are not publicly available.

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Author notes

  1. Lei Qiu, Hongfeng Pang and Gang Yao have contributed equally to this work.

Authors and Affiliations

  1. Department of Electronic and Optical Engineering, Space Engineering University, Beijing, 101416, Beijing, China

    Bo Xiao, Wei Qu, Lei Qiu & Hongfeng Pang

  2. Beijing Institute of Tracking and Telecommunications Technology, Beijing, 100094, Beijing, China

    Gang Yao

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  1. Bo Xiao
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  2. Wei Qu
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  3. Lei Qiu
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  4. Hongfeng Pang
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  5. Gang Yao
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Correspondence to Wei Qu.

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Xiao, B., Qu, W., Qiu, L. et al. OFDM integrated waveform design for joint radar and communication. Wireless Netw 30, 5425–5436 (2024). https://doi.org/10.1007/s11276-023-03269-w

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