Optimal Pilot Design for OTFS in Linear Time-Varying Channels
<|reference_start|>Optimal Pilot Design for OTFS in Linear Time-Varying Channels: This paper investigates the positioning of the pilot symbols, as well as the power distribution between the pilot and the communication symbols in the OTFS modulation scheme. We analyze the pilot placements that minimize the mean squared error (MSE) in estimating the channel taps. In addition, we optimize the average channel capacity by adjusting the power balance. We show that this leads to a significant increase in average capacity. The results provide valuable guidance for designing the OTFS parameters to achieve maximum capacity. Numerical simulations are performed to validate the findings.<|reference_end|>
@article{van der werf2024optimal,
    title={Optimal Pilot Design for OTFS in Linear Time-Varying Channels},
    author={Ids van der Werf, Richard Heusdens, Richard C. Hendriks and Geert Leus},
    journal={arXiv preprint arXiv:2403.19379},
    year={2024},
    archivePrefix={arXiv},
    eprint={2403.19379},
    primaryClass={eess.SP cs.IT math.IT}
}