Results 21 to 30 of about 8,834,159 (233)

User-centric energy efficiency fairness in backscatter-assisted wireless powered communication network

open access: yesTongxin xuebao, 2020
In order to address the unfair user-centric energy efficiency (EE) problem caused by channel difference in the backscatter-assisted wireless powered communication network,a resource allocation scheme was proposed.Firstly,a mixed integer nonconvex ...
Yinghui YE, Liqin SHI, Guangyue LU
doaj   +2 more sources

Jammer-Assisted Legitimate Eavesdropping in Wireless Powered Suspicious Communication Networks

open access: yesIEEE Access, 2019
To enhance public safety, it is necessary to legitimately eavesdrop communication between suspicious users, such as terrorists and criminals. In this paper, we investigate legitimate eavesdropping in a wireless-powered suspicious communication network ...
Ding Xu, Hongbo Zhu, Qun Li
doaj   +1 more source

An Empirical Energy Model for Supercapacitor Powered Wireless Sensor Nodes [PDF]

open access: yes, 2008
The modeling of energy components in Wireless Sensor Network (WSN) simulation is important for obtaining realistic lifetime predictions and ensuring the faithful operation of energy-aware algorithms.
Lewis, Adam P.   +5 more
core   +2 more sources

Mine emergency communication system

open access: yesGong-kuang zidonghua, 2019
Feasibility of using existing mine communication system as emergency communication system was analyzed. Leakage communication system, inductive communication system, multi-base station mobile communication system, broadcast communication system and ...
Mine emergency communication system
doaj   +1 more source

A Survey on the Security Challenges of Low-Power Wireless Communication Protocols for Communicating Concrete in Civil Engineerings

open access: yesSensors, 2023
With the increase in low-power wireless communication solutions, the deployment of Wireless Sensor Networks is becoming usual, especially to implement Cyber-Physical Systems.
Gaël Loubet   +3 more
doaj   +1 more source

Monitoring for Rare Events in a Wireless Powered Communication mmWave Sensor Network

open access: yesSensors, 2020
The use of a wireless sensor network to monitor an area of interest for possible hazardous events has become a common practice. The difficulty of replacing or recharging sensor batteries dictates the use of energy harvesting as a means to extend the ...
Michael Koutsioumpos   +3 more
doaj   +1 more source

Enabling opportunistic energy trading between overlapping energy harvesting wireless sensor networks [PDF]

open access: yes, 2014
Energy harvesting offers wireless sensor networks the possibility of indefinite operation. Their energy sources are typically uncontrollable and exhibit significant temporalspatial variation.
Geoff V. Merrett   +5 more
core   +1 more source

Large-Scale Wireless-Powered Networks With Backscatter Communications—A Comprehensive Survey

open access: yesIEEE Open Journal of the Communications Society, 2020
Massive and ubiquitous deployment of devices in networks of fifth generation (5G) and beyond wireless has necessitated the development of ultra-low-power wireless communication paradigms.
Fatemeh Rezaei   +2 more
doaj   +1 more source

User Cooperation in Wireless-Powered Backscatter Communication Networks [PDF]

open access: yes, 2019
© 2012 IEEE. In this letter, we introduce new user-cooperation schemes for wireless devices in a wireless-powered backscatter communication network with the aim to improve communication and energy efficiency for the whole network.
Hoang, DT, Lyu, B, Yang, Z
core   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

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