Results 61 to 70 of about 300,516 (230)

Design and investigation of small-scale long-distance RF energy harvesting system for wireless charging using CNN, LSTM, and reinforcement learning

Frontiers in Physics
Introduction: The energy supply challenge in wireless charging applications is currently a significant research problem. To address this issue, this study introduces a novel small-scale long-distance radio frequency (RF) energy harvesting system that ...
Hao Zhang, Yue Wang, Hyeong Kwang Benno Park, Tae Hyun Sung   +3 more
doaj   +1 more source

An Energy Supply System for Wireless Sensor Network Nodes

International Journal of Distributed Sensor Networks, 2012
The power source is a critical obstacle for wireless sensor network nodes. In order to prolong the lifetime of wireless sensor networks, this paper presents an energy supply system that uses a specially designed broadband piezoelectric energy harvesting ...
Guoqiang Zheng, Liwei Zhang, Jishun Li
doaj   +1 more source

Wireless Powered Communication Networks Using Peer Harvesting

IEEE Access, 2017
In this paper, we consider a wireless powered communication (WPC) network consisting of one hybrid access point (H-AP) and K wireless nodes. The H-AP broadcasts wireless energy to nodes in the downlink and receives information from K nodes abided by TDMA
Zhibin Xie, Yunfei Chen, Yan Gao, Yajun Wang, Yinjie Su   +4 more
doaj   +1 more source

Security Cost Aware Data Communication in Low-Power IoT Sensors with Energy Harvesting

Sensors, 2018
Security is a critical concern in low-power IoT (Internet of Things) wireless sensors because these resource constrained devices are easy to attack and meanwhile the energy constraint sensors will consume a lot of energy to run algorithms for security ...
Xiaolin Fang, Ming Yang, Wenjia Wu
doaj   +1 more source

System Performance Analysis of Sensor Networks for RF Energy Harvesting and Information Transmission

Future Internet, 2023
This paper investigates the problem of RF energy harvesting in wireless sensor networks, with the aim of finding a suitable communication protocol by comparing the performance of the system under different protocols.
Kuncheng Lei, Zhenrong Zhang
doaj   +1 more source

On the Tradeoff between Energy Harvesting and Caching in Wireless Networks

, 2015
Self-powered, energy harvesting small cell base stations (SBS) are expected to be an integral part of next-generation wireless networks. However, due to uncertainties in harvested energy, it is necessary to adopt energy efficient power control schemes to
Kumar, Akshay, Saad, Walid
core   +1 more source

Multiuser Energy Diversity in Energy Harvesting Wireless Communications

CoRR, 2016
Energy harvesting communication has raised great research interests due to its wide applications and feasibility of commercialization. In this paper, we investigate the multiuser energy diversity. Specifically, we reveal the throughput gain coming from the increase of total available energy harvested over time/space and from the combined dynamics of ...
Hang Li 0003, Chuan Huang 0001, Shuguang Cui   +2 more
openaire   +2 more sources

RF Energy Harvesting Techniques for Battery-Less Wireless Sensing, Industry 4.0, and Internet of Things: A Review

IEEE Sensors Journal
As the Internet of Things (IoT) continues to expand, the demand for the use of energy-efficient circuits and battery-less devices has grown rapidly. Battery-less operation, zero maintenance, and sustainability are the desired features of IoT devices in ...
G. Moloudian, M. Hosseinifard, Sanjeev Kumar, R. Simorangkir, J. Buckley, Chaoyun Song, Gualtiero Fantoni, Brendan O’Flynn   +7 more
semanticscholar   +1 more source

Standalone Stretchable RF Systems Based on Asymmetric 3D Microstrip Antennas With on-body Wireless Communication and Energy Harvesting

Nano Energy, 2022
Chaoyun Song (宋超运) received his BEng (Hons.), MSc (with distinction) and PhD degrees all in electrical engineering and electronics from The University of Liverpool (UoL), Liverpool, UK, in 2012, 2013 and 2017, respectively.
Senhao Zhang, Jia Zhu, Yingying Zhang, Zhensheng Chen, Chaoyun Song, Jiuqiang Li, Ning Yi, Donghai Qiu, Kai Guo, Cheng Zhang, T. Pan, Yuan Lin, Honglei Zhou, Hao Long, Hongbo Yang, Huanyu Cheng   +15 more
semanticscholar   +1 more source

Multi-Objective Resource Allocation in a NOMA Cognitive Radio Network With a Practical Non-Linear Energy Harvesting Model

IEEE Access, 2018
Cognitive radio and non-orthogonal multiple access are promising for alleviating the severe spectral scarcity problem encountered by the next generation wireless communication systems.
Yuhao Wang, Yuhang Wu, Fuhui Zhou, Zheng Chu, Yongpeng Wu, Fei Yuan   +5 more
doaj   +1 more source