Joint Transmit Signal and Beamforming Design for Integrated Sensing and Power Transfer Systems

Mayer K, Shanin N, You Z, Lotter S, Brückner S, Vossiek M, Cottatellucci L, Schober R (2024)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2024

Publisher: Institute of Electrical and Electronics Engineers Inc.

Pages Range: 5068-5091

Conference Proceedings Title: IEEE International Conference on Communications, ICC 2024

ISBN: 978-1-7281-9054-9

DOI: 10.1109/ICC51166.2024.10622740

Abstract

Integrating different functionalities, conventionally implemented as dedicated systems, into a single platform allows utilising the available resources more efficiently. We consider an integrated sensing and power transfer (ISAPT) system and propose the joint optimisation of the rectangular pulse-shaped transmit signal and the beamforming vector to combine sensing and wireless power transfer (WPT) functionalities efficiently. In contrast to prior works, we adopt an accurate non-linear circuit-based energy harvesting (EH) model. We formulate and solve a non-convex optimisation problem for a general number of EH receivers to maximise a weighted sum of the average harvested powers at the EH receivers while ensuring the received echo signal reflected by a sensing target (ST) has sufficient power for estimating the range to the ST with a prescribed accuracy within the considered coverage region. The average harvested power is shown to monotonically increase with the pulse duration when the average transmit power budget is sufficiently large. We discuss the trade-off between sensing performance and power transfer for the considered ISAPT system. The proposed approach significantly outperforms a heuristic baseline scheme based on a linear EH model, which linearly combines energy beamforming with the beamsteering vector in the direction to the ST as its transmit strategy.

Authors with CRIS profile

Kenneth Mayer Lehrstuhl für Digitale Übertragung (IDC) Nikita Shanin Lehrstuhl für Digitale Übertragung (IDC) Sebastian Lotter Lehrstuhl für Digitale Übertragung (IDC) Stefan Brückner Lehrstuhl für Hochfrequenztechnik (LHFT) Martin Vossiek Lehrstuhl für Hochfrequenztechnik (LHFT) Laura Cottatellucci Professur für Digitale Übertragung Robert Schober Lehrstuhl für Digitale Übertragung (IDC)

Additional Organisation(s)

Sonderforschungsbereich 1483/1 Empathokinästhetische Sensorik – Sensortechniken und Datenanalyseverfahren zur empathokinästhetischen Modellbildung und Zustandsbestimmung (EmpkinS)

How to cite

APA:

Mayer, K., Shanin, N., You, Z., Lotter, S., Brückner, S., Vossiek, M.,... Schober, R. (2024). Joint Transmit Signal and Beamforming Design for Integrated Sensing and Power Transfer Systems. In IEEE International Conference on Communications, ICC 2024 (pp. 5068-5091). Institute of Electrical and Electronics Engineers Inc..

MLA:

Mayer, Kenneth, et al. "Joint Transmit Signal and Beamforming Design for Integrated Sensing and Power Transfer Systems." Proceedings of the IEEE International Conference on Communications, ICC 2024 Institute of Electrical and Electronics Engineers Inc., 2024. 5068-5091.

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