Results 41 to 50 of about 6,700 (283)

Wireless power transfer and energy harvesting in distributed sensor networks: Survey, opportunities, and challenges

open access: yesInternational Journal of Distributed Sensor Networks, 2022
Distributed sensor networks have emerged as part of the advancements in sensing and wireless technologies and currently support several applications, including continuous environmental monitoring, surveillance, tracking, and so on which are running in ...
Gerald K Ijemaru   +2 more
doaj   +1 more source

Radio frequency energy harvesting-combined collaborative energy-saving computation offloading mechanism

open access: yes物联网学报, 2023
In order to fit the differentiated energy demands in vertical markets and ensure that internet of things (IoT) devices can hold an efficient and sustainable operation mode, a radio frequency energy harvesting-combined collaborative energy-saving ...
Bei TANG, Qian WANG, Siguang CHEN
doaj   +2 more sources

A survey on ambient energy sources and harvesting methods for structural health monitoring applications

open access: yesAdvances in Mechanical Engineering, 2017
Structural health monitoring is widely used for maintaining and monitoring various structures in different areas. In general, the structural health monitoring system life span depends on the capability of the batteries, but it can be increased by energy ...
Shihua Cao, Jianqing Li
doaj   +1 more source

Real‐time implementation of distributed beamforming for simultaneous wireless information and power transfer in interference channels

open access: yesETRI Journal, 2020
In this paper, we propose one‐bit feedback‐based distributed beamforming (DBF) techniques for simultaneous wireless information and power transfer in interference channels where the information transfer and power transfer networks coexist in the same ...
Yong‐Gi Hong   +4 more
doaj   +1 more source

Powering E-Textiles Using a Single Thread Radio Frequency Energy Harvesting Rectenna

open access: yesProceedings, 2021
Radio frequency energy harvesting (RFEH) and wireless power transfer (WPT) are increasingly seen as a method of enabling sustainable computing, as opposed to mechanical or solar EH WPT does not require special materials or resonators and can be ...
Mahmoud Wagih   +2 more
doaj   +1 more source

Using design optimization in radio frequency energy harvesting systems

open access: yes, 2013
RF-harvesting energy is the process of scavenging power from electromagnetic fields at radio frequency band. By RF-harvesting technology, we are able to recycle EM-fields and use them as power supply for electrical devices.
H. Shadmehr   +7 more
core   +2 more sources

A Comprehensive Survey on RF Energy Harvesting: Applications and Performance Determinants

open access: yesSensors, 2022
There has been an explosion in research focused on Internet of Things (IoT) devices in recent years, with a broad range of use cases in different domains ranging from industrial automation to business analytics. Being battery-powered, these small devices
Hafiz Husnain Raza Sherazi   +2 more
doaj   +1 more source

Multiband Patch Antenna Design Using Nature-Inspired Optimization Method

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
Radio frequency energy harvesting has attracted considerable interest as a technique of enabling self-powered wireless networks. This technique faces several challenges, such as the receiving and the rectifying modules of a rectenna system.
Achilles D. Boursianis   +7 more
doaj   +1 more source

Analysis and Design Methodology of RF Energy Harvesting Rectifier Circuit for Ultra-Low Power Applications

open access: yesIEEE Open Journal of Circuits and Systems, 2022
This paper reviews and analyses the design of popular radio frequency energy harvesting systems and proposes a method to qualitatively and quantitatively analyze their circuit architectures using new square-wave approximation method.
Ziyue Xu   +7 more
doaj   +1 more source

Improving Energy Harvesting System from Ambient RF Sources in Social Systems with Overcrowding

open access: yesInternational Journal of Crowd Science
This paper presents a novel approach to enhance energy harvesting systems from ambient Radio Frequency (RF) sources in overcrowded environments. In environments like shopping malls, coffee shops, and airports, where wireless devices are prevalent, the ...
Ramy Agieb   +5 more
doaj   +1 more source

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