Joint Delay-Doppler Estimation Using OFDMA Payloads for Integrated Communications and Sensing
Miranda M, Semper S, Schneider C, Thomä R, Del Galdo G (2025)
Publication Type: Conference contribution
Publication year: 2025
Publisher: Institute of Electrical and Electronics Engineers Inc.
Pages Range: 577-582
Conference Proceedings Title: 2025 Joint European Conference on Networks and Communications and 6G Summit, EuCNC/6G Summit 2025 - Proceedings
Event location: Poznan, POL
ISBN: 9798350391800
DOI: 10.1109/EuCNC/6GSummit63408.2025.11037009
Abstract
The use of future communication systems for sensing offers the potential for a number of new applications. In this paper, we show that leveraging user data payloads in multinode Orthogonal Frequency Division Multiple Access (OFDMA) networks for estimating target delay and Doppler-shift parameters can yield a significant advantage in SNR and addressable bandwidth. However, gaps in the frequency-time resources, reference signal boosting and amplitude modulation schemes introduce challenges for estimation at the sensing receiver. In this work, we propose a joint delay and Doppler-shift model-based estimator designed to address these challenges. Furthermore, we demonstrate that incorporating knowledge of the device model into the estimation procedure helps mitigate the effects of the nonideal radar ambiguity function caused by amplitude-modulated user payloads and sparse reference signals. Simulation results demonstrate that the estimator achieves the theoretical lower bound on estimation variance.
Involved external institutions
Germany (DE)How to cite
APA:
Miranda, M., Semper, S., Schneider, C., Thomä, R., & Del Galdo, G. (2025). Joint Delay-Doppler Estimation Using OFDMA Payloads for Integrated Communications and Sensing. In 2025 Joint European Conference on Networks and Communications and 6G Summit, EuCNC/6G Summit 2025 - Proceedings (pp. 577-582). Poznan, POL: Institute of Electrical and Electronics Engineers Inc..
MLA:
Miranda, Marc, et al. "Joint Delay-Doppler Estimation Using OFDMA Payloads for Integrated Communications and Sensing." Proceedings of the 2025 Joint European Conference on Networks and Communications and 6G Summit, EuCNC/6G Summit 2025, Poznan, POL Institute of Electrical and Electronics Engineers Inc., 2025. 577-582.
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