High-Precision Positioning with Continuous Delay and Doppler Shift using AFT-MC Waveforms
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866909456207446016 |
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| author | Yi, Cong Yin, Haoran Lu, Xianjie Tang, Yanqun |
| author_facet | Yi, Cong Yin, Haoran Lu, Xianjie Tang, Yanqun |
| contents | This paper explores a novel integrated localization and communication (ILAC) system using the affine Fourier transform multicarrier (AFT-MC) waveform. Specifically, we consider a multiple-input multiple-output (MIMO) AFT-MC system with ILAC and derive a continuous delay and Doppler shift channel matrix model. Based on the derived signal model, we develop a two-step algorithm with low complexity for estimating channel parameters. Furthermore, we derive the Cramér-Rao lower bound (CRLB) of location estimation as the fundamental limit of localization. Finally, we provide some insights about the AFT-MC parameters by explaining the impact of the parameters on localization performance. Simulation results demonstrate that the AFT-MC waveform is able to provide significant localization performance improvement compared to orthogonal frequency division multiplexing (OFDM) while achieving the CRLB of location estimation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_00372 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | High-Precision Positioning with Continuous Delay and Doppler Shift using AFT-MC Waveforms Yi, Cong Yin, Haoran Lu, Xianjie Tang, Yanqun Signal Processing This paper explores a novel integrated localization and communication (ILAC) system using the affine Fourier transform multicarrier (AFT-MC) waveform. Specifically, we consider a multiple-input multiple-output (MIMO) AFT-MC system with ILAC and derive a continuous delay and Doppler shift channel matrix model. Based on the derived signal model, we develop a two-step algorithm with low complexity for estimating channel parameters. Furthermore, we derive the Cramér-Rao lower bound (CRLB) of location estimation as the fundamental limit of localization. Finally, we provide some insights about the AFT-MC parameters by explaining the impact of the parameters on localization performance. Simulation results demonstrate that the AFT-MC waveform is able to provide significant localization performance improvement compared to orthogonal frequency division multiplexing (OFDM) while achieving the CRLB of location estimation. |
| title | High-Precision Positioning with Continuous Delay and Doppler Shift using AFT-MC Waveforms |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2405.00372 |