Results 31 to 40 of about 6,700 (283)

Optimization of a radio frequency energy harvesting device [PDF]

open access: yes2012 IEEE Congress on Evolutionary Computation, 2012
This paper proposes the optimized design of a wireless energy harvesting device (EHD), by means of a recently developed evolutionary optimization method. This procedure is developed in order to increase the transfer efficiency and the robustness of the coupling, with the aim of minimizing the average power loss, and to increase the lifetime of a ...
MUSSETTA, MARCO   +4 more
openaire   +2 more sources

Quad-Band Rectenna for Ambient Radio Frequency (RF) Energy Harvesting

open access: yesSensors, 2021
RF power is broadly available in both urban and semi-urban areas and thus exhibits as a promising candidate for ambient energy scavenging sources.
Sunanda Roy   +5 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

Non-orthogonal multiple access and beamforming for relay network with RF energy harvesting

open access: yesICT Express, 2020
Downlink multi-user non-orthogonal multiple access (NOMA) relay systems, that are wirelessly powered by harvesting energy from radio frequency, are taken into consideration.
Pham Thanh Hiep, Tran Manh Hoang
doaj   +1 more source

DESIGN CONSIDERATIONS FOR RADIO FREQUENCY ENERGY HARVESTING DEVICES [PDF]

open access: yesProgress In Electromagnetics Research B, 2012
Radio Frequency Energy harvesting is a research topic of increasing interest, related to sustainability, which could become a promising alternative to existing energy resources. The paper will show all the activities addressed to design a wideband system to recover wideband energy from electromagnetic sources present in the environment.
D. Pavone   +3 more
openaire   +2 more sources

Optimum energy harvesting model for bidirectional cognitive radio networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2021
Wireless devices’ energy efficiency and spectrum shortage problem has become a key concern worldwide as the number of wireless devices increases at an unparalleled speed.
Mohammad Kamrul Hasan   +5 more
doaj   +1 more source

Energy efficiency optimization-based resource allocation for underlay RF-CRN with residual energy and QoS guarantee

open access: yesEURASIP Journal on Wireless Communications and Networking, 2020
How to achieve energy-efficient transmission in radio frequency energy harvesting cognitive radio network (RF-CRN) is of great importance when nodes in CRN are self-maintained.
Jie Tian   +4 more
doaj   +1 more source

D2D Lifetime Analysis in Context of Radio Frequency Energy Harvesting

open access: yesWireless Personal Communications, 2023
Abstract Device-to-device (D2D) communication has been recognized as one of the promising paradigms for supporting the next generation of cellular networks, it brings several benefits in terms of reducing time delay for communication, and providing better spectrum efficiency.
Abdelkarim Chinbou   +2 more
openaire   +1 more source

Resource Allocation in Multi-Cluster Cognitive Radio Networks With Energy Harvesting for Hybrid Multi-Channel Access

open access: yesIEEE Access, 2023
Cognitive radio and energy harvesting techniques have been able to provide insight for solutions to the inefficiency in spectrum utilization and the effects of the limited storage capacity of energy batteries.
Akinbode A. Olawole, Fambirai Takawira
doaj   +1 more source

Hybrid Power Divider and Combiner for Passive RFID Tag Wireless Energy Harvesting

open access: yesIEEE Access, 2022
This paper presents three- and five-ports radio frequency (RF) hybrid power divider combiner (HPDC) designs with multiband characteristics operating at 2.4 GHz (ISM, IEEE 802.11b,g); 5.8 GHz (IEEE 802.11n, a and 802.11ac); and 6 GHz (IEEE 802.11ax ...
Muazzam Zafar   +5 more
doaj   +1 more source

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