Harnessing RF energy for sustainable power in Ambient IoT devices
department or school: Applied Science, Faculty of
department or school: Electrical and Computer Engineering, Department of
data provider: DSpace
degree campus: UBCV
creator: Beckett, Marley
issued: 2025-10-31T07:00:00Z
issued: 2024
related degree: Master of Applied Science - MASc
degree grantor: University of British Columbia
description: The proliferation of Internet of Things (IoT) devices has transformed the technological landscape by embedding smart functionalities into everyday objects. Despite these advancements, most IoT devices continue to rely on traditional batteries, which present challenges such as limited lifespan, frequent replacements, and environmental concerns due to electronic waste. Ambient IoT, a technology currently undergoing standardization, seeks to address these issues by enabling devices to operate sustainably using harvested environmental energy. However, standardization efforts have not yet fully addressed energy harvesting, leaving its practical deployment uncertain. Focusing on radio frequency (RF) energy harvesting, this work examines holistic models to evaluate the performance of energy harvesting systems within the context of Ambient IoT. By examining ongoing standardization efforts and identifying the unique design requirements of Ambient IoT devices, we illustrate how Ambient IoT differs from existing technologies. Key performance metrics, specifically energy harvesting coverage and charging probability, are introduced to assess the effectiveness of various RF energy sources. This thesis further explores the feasibility of powering Ambient IoT devices through ambient RF sources by integrating real-world measurements and generating pseudo-ambient data that represents the available power across various lo- cations. To account for the inherent variability in RF signals, an autoregressive process is employed to model the correlations between data points. The numerical results demonstrate that while ambient RF energy harvesting is viable in outdoor settings, indoor environments pose significant challenges due to low mean power densities. In addition to ambient RF sources, we examine dedicated RF energy sources to improve the reliability and coverage of power delivery for Ambient IoT devices. By strategically deploying dedicated sources using point processes related to re…
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/89494
note: Harnessing RF Energy for Sustainable Power in AmbientIoT DevicesbyMarley BeckettB.ASc., Queen’s University, 2021A THESIS SUBMITTED IN PARTIAL FULFILLMENTOF THE REQUIREMENTS FOR THE DEGREE OFMaster of Applied ScienceinTHE FACULTY OF GRADUATE AND POSTDOCTORALSTUDIES(Electrical and Computer Engineering)The University of British Columbia(Vancouver)October 2024© Marley Beckett, 2024The following individuals certify that they have read, and recommend to the Fac-ulty of Graduate and Postdoctoral Studies for acceptance, the thesis entitled:Harnessing RF Energy for Sustainable Power in Ambient IoT Devicessubmitted by Marley Beckett in partial fulfillment of the requirements for the de-gree of Master of Applied Science in Electrical and Computer Engineering.Examining Committee:Lutz Lampe, Professor, Electrical and Computer Engineering, UBCSupervisorSudip Shekhar, Professor, Electrical and Computer Engineering, UBCSupervisory Committee MemberLele Wang, Assistant Professor, Electrical and Computer Engineering, UBCSupervisory Committee MemberiiAbstractThe proliferation of Internet of Things (IoT) devices has transformed the techno-logical landscape by embedding smart functionalities into everyday objects. De-spite these advancements, most IoT devices continue to rely on traditional batteries,which present challenges such as limited lifespan, frequent replacements, and envi-ronmental concerns due to electronic waste. Ambient IoT, a technology currentlyundergoing standardization, seeks to address these issues by enabling devices tooperate sustainably using harvested environmental energy. However, standardiza-tion efforts have not yet fully addressed energy harvesting, leaving its practicaldeployment uncertain.Focusing on radio frequency (RF) energy harvesting, this work examines holis-tic models to evaluate the performance of energy harvesting systems within thecontext of Ambient IoT. By examining ongoing standardization efforts and iden-tifying the unique design requirements of A…
has type: Thesis/Dissertation
date issued: 2024-11
is shown at: 10.14288/1.0447070
language: eng
degree discipline: Electrical and Computer Engineering
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
contributor: Lampe, Lutz
type: Text
identifier URI: http://hdl.handle.net/2429/89494