Results 51 to 60 of about 90,356 (316)

Optimal Time Allocation in Backscatter Assisted Wireless Powered Communication Networks

open access: yesSensors, 2017
This paper proposes a wireless powered communication network (WPCN) assisted by backscatter communication (BackCom). This model consists of a power station, an information receiver and multiple users that can work in either BackCom mode or harvest-then ...
Bin Lyu   +3 more
doaj   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

open access: yesAdvanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil   +13 more
wiley   +1 more source

Wireless sensor networks [PDF]

open access: yesIEEE Wireless Communications, 2004
Havinga, Paul J.M.   +2 more
openaire   +2 more sources

Wireless Powered Communication Networks Assisted by Backscatter Communication

open access: yesIEEE Access, 2017
This paper proposes a backscatter-assisted wireless powered communication network that includes a hybrid access point and multiple users. In conventional wireless powered communication networks with only harvest-then-transmit (HTT) mode, urgent data ...
Bin Lyu   +3 more
doaj   +1 more source

Solution‐Processed Thin‐Film Transistors With Tunable Temporal Dynamics for Neuromorphic Computing

open access: yesAdvanced Functional Materials, EarlyView.
Solution‐processed CNT and CNT/P3HT ion‐gated transistors exhibit materials‐defined synaptic timescales: fast CNT devices for high‐frequency spiking and slow hybrid devices for temporal integration. Embedding these dynamics into coupled reservoir‐computing and spiking neural network simulations reveals that a Hybrid‐Reservoir / CNT‐SNN architecture ...
Kevin Schnittker   +5 more
wiley   +1 more source

Energy managed reporting for wireless sensor networks

open access: yes, 2008
In this paper, we propose a technique to extend the network lifetime of a wireless sensor network, whereby each sensor node decides its individual network involvement based on its own energy resources and the information contained in each packet.
Merrett, Geoff V.   +3 more
core   +1 more source

Novel Node Localization Algorithm Based on Nonlinear Weighting Least Square for Wireless Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2012
Positioning of the location information of wireless sensor network nodes is one of the key issues in wireless sensor network applications. The traditional node positioning method based on least-square algorithm heavily depends on the ranging accuracy ...
Fu Xiao   +4 more
doaj   +1 more source

Wireless Sensor Network Security [PDF]

open access: yesInternational Journal of Distributed Sensor Networks, 2013
Wireless sensor networks consist of a large number of low-cost, low-power, and multifunctional sensor nodes that communicate over short distances through wireless links. Such sensor networks are ideal candidates for a wide range of applications such as monitoring of critical infrastructures, data acquisition in hazardous environments, industry control ...
An Liu   +3 more
openaire   +2 more sources

Oxidized MoS2‐Based Multifunctional Memristive Hardware for Energy‐Efficient mmWave Signal Processing and In‐Memory Matrix Multiplication

open access: yesAdvanced Functional Materials, EarlyView.
Thermally oxidized MoS2‐based radio‐frequency switches enable a multifunctional platform that unifies broadband RF switching and in‐memory computation. The device achieves a cutoff frequency of 33.2 THz with high energy efficiency and supports hardware‐aware signal processing.
Juho Son   +5 more
wiley   +1 more source

Fusing target information from multiple views for robust visual tracking

open access: yesIET Computer Vision, 2014
In this study, the authors address the problem of tracking a single target in a calibrated multi‐camera surveillance system with information on its location in the first frame of each view. Recently, tracking with online multiple instance learning (OMIL)
Keli Hu   +3 more
doaj   +1 more source

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