Design and Analysis of SWIPT With Safety Constraints

Psomas, Constantinos; You, Minglei; Liang, Kai; Zheng, Gan; Krikidis, Ioannis

Abstract

Simultaneous wireless information and power transfer (SWIPT) has long been proposed as a key solution for charging and communicating with low-cost and low-power devices. However, the employment of radio frequency (RF) signals for information/power transfer needs to comply with international health and safety regulations. In this paper, we provide a complete framework for the design and analysis of far-field SWIPT under safety constraints. In particular, we deal with two RF exposure regulations, namely, the specific absorption rate (SAR) and the maximum permissible exposure (MPE). The state-of-the-art regarding SAR and MPE is outlined together with a description as to how these can be modeled in the context of communication networks. We propose a deep learning approach for the design of robust beamforming subject to specific information, energy harvesting and SAR constraints. Furthermore, we present a thorough analytical study for the performance of large-scale SWIPT systems, in terms of information and energy coverage under MPE constraints. This work provides insights with regards to the optimal SWIPT design as well as the potentials from the proper development of SWIPT systems under health and safety restrictions.

Citation

Psomas, C., You, M., Liang, K., Zheng, G., & Krikidis, I. (2022). Design and Analysis of SWIPT With Safety Constraints. Proceedings of the IEEE, 110(1), 107-126. https://doi.org/10.1109/jproc.2021.3130084

• Journal Article Type: Article
• Acceptance Date: Nov 15, 2021
• Online Publication Date: Dec 2, 2021
• Publication Date: 2022-01
• Deposit Date: Nov 23, 2021
• Publicly Available Date: Dec 2, 2021
• Journal: Proceedings of the IEEE
• Print ISSN: 0018-9219
• Electronic ISSN: 1558-2256
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 110
• Issue: 1
• Pages: 107-126
• DOI: https://doi.org/10.1109/jproc.2021.3130084
• Keywords: Electrical and Electronic Engineering
• Public URL: https://nottingham-repository.worktribe.com/output/6727461
• Publisher URL: https://ieeexplore.ieee.org/document/9633129
• Additional Information: © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.