Resonant Tunneling Diode- Based THz SWIPT for Microscopic 6G loT Devices

Shanin N, Clochiatti S, Mayer K, Cottatellucci L, Weimann NG, Schober R (2023)

Publication Type: Conference contribution

Publication year: 2023

Original Authors: Nikita Shanin, Simone Clochiatti, Kenneth M. Mayer, Laura Cottatellucci, Nils Weimann, Robert Schober

Publisher: IEEE

City/Town: New York City

Conference Proceedings Title: 2023 IEEE Globecom Workshops (GC Wkshps)

Event location: Kuala Lumpur MY

DOI: 10.1109/GCWkshps58843.2023.10464823

Abstract

In this paper, we study terahertz (THz) simultaneous wireless information and power transfer (SWIPT) for future micro-scale 6G Internet-of- Things (loT) networks. Since Schottky diodes are not efficient for THz energy harvesting (EH), we propose resonant tunneling diodes (RTDs) for EH at the loT receiver (RX). As the electrical properties of RTDs are different from those of Schottky diodes, we develop a novel closed-form EH model for RTD-based RXs. In particular, we model the dependency of the instantaneous RX output power on the instantaneous received power by a non-linear piecewise function, whose parameters are adjusted to fit circuit simulation results. Furthermore, since coherent information detection is challenging at THz frequencies, we employ unipolar amplitude shift keying (ASK) modulation at the transmitter (TX) and utilize the RTD-based EH circuit at the RX to extract both information and energy from the received signal. We formulate an optimization problem to maximize the mutual information between the TX and RX signals subject to constraints on the peak amplitude of the transmitted signal and the required average harvested power at the RX. Moreover, we determine a feasibility condition for the formulated problem and, for high and low required average harvested powers, we derive the achievable information rate numerically and in closed form, respectively. Our simulation results highlight a tradeoff between the information rate and the average harvested power. Finally, we show that this tradeoff is determined by the peak amplitude of the transmitted signal and the maximum instantaneous harvested power for low and high received signal powers, respectively.

Authors with CRIS profile

Nikita Shanin Lehrstuhl für Digitale Übertragung Kenneth Mayer Lehrstuhl für Digitale Übertragung Laura Cottatellucci Professur für Digitale Übertragung Robert Schober Lehrstuhl für Digitale Übertragung

Involved external institutions

Universität Duisburg-Essen (UDE) DE Germany (DE)

How to cite

APA:

Shanin, N., Clochiatti, S., Mayer, K., Cottatellucci, L., Weimann, N.G., & Schober, R. (2023). Resonant Tunneling Diode- Based THz SWIPT for Microscopic 6G loT Devices. In 2023 IEEE Globecom Workshops (GC Wkshps). Kuala Lumpur, MY: New York City: IEEE.

MLA:

Shanin, Nikita, et al. "Resonant Tunneling Diode- Based THz SWIPT for Microscopic 6G loT Devices." Proceedings of the 2023 IEEE Globecom Workshops, Kuala Lumpur New York City: IEEE, 2023.

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