Results 21 to 30 of about 55,363 (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

A Multiband Radio-Frequency Energy Harvester for Self-Powered Biosensor

open access: yesSSRN Electronic Journal, 2022
This paper presents a novel nano-structure of radio frequency (RF) to direct current (DC) converter for the energy control unit in the biosensor. It is based on the Graëtz Bridge supplied with three-phase power (DP3). This circuit can be considered as the result of the proper combination of a common anode assembly and a common cathode assembly. In fact,
Maissa Daoud   +2 more
openaire   +3 more sources

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

Energy Cooperation in Battery-Free Wireless Communications with Radio Frequency Energy Harvesting [PDF]

open access: yes, 2018
Radio frequency (RF) energy harvesting techniques are becoming a potential method to power battery-free wireless networks. In RF energy harvesting communications, energy cooperation enables shaping and optimization of the energy arrivals at the energy ...
DONG Mianxiong, LI He, OTA Kaoru
core   +2 more sources

Radio Frequency Energy Harvesting for Low Power Sensors

open access: yesTehnicki vjesnik - Technical Gazette, 2021
Wireless sensor networks and the internet of things are benefiting from recent advances in power consumption to implement intelligent control entities. Similar advances in battery technology have enabled these systems to become autonomous. Nevertheless, this approach is insufficient for modern applications.
Ozgonenel*, Okan, Ustun Ercan, Seda
openaire   +4 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

On Spectrum Sharing Between Energy Harvesting Cognitive Radio Users and Primary Users [PDF]

open access: yes, 2014
This paper investigates the maximum secondary throughput for a rechargeable secondary user (SU) sharing the spectrum with a primary user (PU) plugged to a reliable power supply.
Ashour, Mahmoud   +3 more
core   +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

Energy-Efficient Antenna Selection and Power Allocation for Large-Scale Multiple Antenna Systems with Hybrid Energy Supply [PDF]

open access: yes, 2014
The combination of energy harvesting and large-scale multiple antenna technologies provides a promising solution for improving the energy efficiency (EE) by exploiting renewable energy sources and reducing the transmission power per user and per antenna.
Gong, Jie   +3 more
core   +1 more source

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