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Robust DOA estimation and tracking for integrated sensing and communication massive MIMO OFDM systems

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Abstract

In this paper, we propose a robust direction-of-arrival (DOA) estimation and tracking scheme for a massive multiple input multiple output (MIMO) orthogonal frequency-division multiplexing (OFDM) system using integrated sensing and communication (ISAC). First, a frame structure is designed to enable integrated DOA estimation and tracking, as well as data transmission. Then, coherent combining and multipath combining methods are proposed as pilot signal preprocessing methods for robust DOA estimation and tracking. Finally, for ISAC massive MIMO-OFDM systems, a fast Fourier transform (FFT) algorithm-based robust DOA estimator design is proposed, including a preamble-based initial DOA estimation scheme and an embedded pilot-based DOA tracking scheme. The simulation results demonstrate that the proposed robust DOA estimation and tracking method can obtain accurate DOA estimation even when the signal-to-noise ratio is low. Furthermore, the estimation performance outperforms the conventional multiple signal classification (MUSIC) and estimation of signal parameters via rotational invariance technique (ESPRIT) methods.

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Acknowledgements

This work was supported in part by Natural Science Foundation of Jiangsu Province (Grant No. BK202013-34), National Natural Science Foundation of China (Grant Nos. 62071485, 62271503, 62001513), Basic Research Project of Jiangsu Province (Grant No. BK20192002), and Natural Science Foundation of Jiangsu Province (Grant No. BK20200579).

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Authors and Affiliations

  1. College of Communications Engineering, Army Engineering University of PLA, Nanjing, 210007, China

    Kui Xu, Xiaochen Xia, Wei Xie & Jie Liu

  2. School of Information Science and Engineering, Southeast University, Nanjing, 210096, China

    Chunguo Li

  3. School of Electronic Countermeasures, National University of Defense Technology, Hefei, 230037, China

    Rangang Zhu

  4. School of Information Science and Technology, University of Science and Technology of China, Hefei, 230026, China

    Huasen He

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  1. Kui Xu
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  2. Xiaochen Xia
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  3. Chunguo Li
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  4. Wei Xie
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  5. Jie Liu
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  6. Rangang Zhu
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  7. Huasen He
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Correspondence to Kui Xu.

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Xu, K., Xia, X., Li, C. et al. Robust DOA estimation and tracking for integrated sensing and communication massive MIMO OFDM systems. Sci. China Inf. Sci. 66, 202302 (2023). https://doi.org/10.1007/s11432-022-3661-0

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  • DOI: https://doi.org/10.1007/s11432-022-3661-0

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