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 Cram\'er-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.
@article{arxiv.2405.00372,
title = {High-Precision Positioning with Continuous Delay and Doppler Shift using AFT-MC Waveforms},
author = {Cong Yi and Haoran Yin and Xianjie Lu and Yanqun Tang},
journal= {arXiv preprint arXiv:2405.00372},
year = {2025}
}
Comments
Significant changes are made to the documents. This paper contains errors in Section IV, which may mislead readers