Results 41 to 50 of about 9,359,534 (311)

Joint Trajectory Optimization and User Scheduling for Rotary-Wing UAV-Enabled Wireless Powered Communication Networks

open access: yesIEEE Access, 2019
Wireless powered communication networks are promising in the next generation wireless communication systems since they can prolong the communication time of users.
Zhen Wang   +3 more
doaj   +1 more source

Optimal downlink and uplink design in a wireless powered two‐user indoor communication system

open access: yesIET Communications, 2022
This paper applies the wireless powered communication network (WPCN) to an indoor communication system with two energy harvesting (EH) enabled users. Unlike the existing WPCN works designed for outdoor communications, where each user harvests energy only
Syam M.S.   +3 more
doaj   +1 more source

Age of Information Optimization for Wireless Powered Sensor Network Based on IRS-assisted Communication [PDF]

open access: yesJisuanji gongcheng, 2023
To solve the problems that information freshness is easily affected by obstacles between the wireless sensor and Base Station(BS) and that insufficient energy supply of the sensor will lead to degradation of the Age of Information (AoI) performance, a ...
Jiankun YANG, Qianzhu WANG, Yongyi RAN, Feng CHEN
doaj   +1 more source

Full-Duplex Wireless-Powered Communication Network With Energy Causality [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2014
In this paper, we consider a wireless communication network with a full-duplex hybrid energy and information access point and a set of wireless users with energy harvesting capabilities.
Xin Kang, C. Ho, Sumei Sun
semanticscholar   +1 more source

Chemical event tracking using a low-cost wireless chemical sensing network [PDF]

open access: yes, 2008
A recently developed low-cost light emitting diode (LED) chemical sensing technique is integrated with a Mica2Dot wireless communications platform to form a deployable wireless chemical event indicator network.
Corcoran, Brian   +7 more
core   +2 more sources

Thermoelectric energy harvesting for wireless self powered condition monitoring nodes [PDF]

open access: yes, 2013
Condition monitoring of machines and structures is commonly utilized in order to prevent failures before they can occur. For these reasons, data such as temperature, vibrations or displacements are collected and analysed. Sensors collect this information,
Royo Perez, Sandra
core   +7 more sources

Implementation of a Battery-Free Wireless Sensor for Cyber-Physical Systems Dedicated to Structural Health Monitoring Applications

open access: yesIEEE Access, 2019
This paper addresses the concept of a wirelessly powered and battery-free wireless sensor for the cyber-physical systems dedicated to the structural health monitoring applications in harsh environments.
Gael Loubet   +2 more
doaj   +1 more source

"WindFi" - a renewable powered base station for rural broadband [PDF]

open access: yes, 2012
The HopScotch rural wireless broadband access test bed uses a network of low power base stations, powered by renewable energy sources to provide a low-cost rural broadband solution.
Weiss, Stephan   +4 more
core   +3 more sources

Energy-Neutral Operation Based on Simultaneous Wireless Information and Power Transfer for Wireless Powered Sensor Networks

open access: yesEnergies, 2019
For energy-neutral operation (ENO) of wireless sensor networks (WSNs), we apply a wireless powered communication network (WPCN) to a WSN with a hierarchical structure.
Hyun-Ho Choi, Jung-Ryun Lee
doaj   +1 more source

A novel model to eliminate the doubly near‐far problem in wireless powered communication network

open access: yesIET Communications, 2021
In this paper, the newly emerging wireless powered communication network is studied. In doing so, the performance of the global controller (GC) is evaluated, which coordinates the wireless energy transmissions between two sensor nodes.
Jitendra Singh   +3 more
doaj   +1 more source

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