Results 1 to 10 of about 1,465,984 (298)

Time Switching Based Wireless Powered Relay Transmission with Uplink NOMA [PDF]

open access: yesSensors, 2021
Non-orthogonal multiple access (NOMA) utilizes power domain multiplexing to improve spectrum efficiency compared with orthogonal multiple access (OMA). In the Internet of Things (IoT) uplink NOMA networks, if the channel between the far-end node and the ...
Zhihua Lin, Shihua Cao, Jianqing Li
doaj   +2 more sources

MEMS optical switch: Switching time reduction

open access: yesOpen Computer Science, 2016
Existing 3D MEMS-based optical switches offer good optical properties (low insertion loss, low crosstalk), high reliability and low power consumption.
Plander Ivan, Stepanovsky Michal
doaj   +2 more sources

On Switching Stabilizability for Continuous-Time Switched Linear Systems

open access: yesIEEE Transactions on Automatic Control, 2016
This paper studies switching stabilization problems for continuous-time switched linear systems. We consider four types of switching stabilizability defined under different assumptions on the switching control input.
Lu, Yueyun, Zhang, Wei
core   +2 more sources

Dynamic Power Splitting Simultaneous Wireless Information and Power Transfer Split Receiver for Wireless Sensor Networks

open access: yesIEEE Access, 2021
Simultaneous wireless information and power transfer (SWIPT) presents a genuine opportunity toward achieving sustainable low-energy wireless devices. This paper introduces a receiver design for an energy harvesting sensor node (SN).
Amar Esse   +3 more
doaj   +1 more source

A switch in time [PDF]

open access: yesCommunications of the ACM, 2021
The introduction of the nanosheet transistor is just one step in the continuing attempt to stick to the spirit of Moore's Law.
openaire   +1 more source

System Performance Analysis for an Energy Harvesting IoT System Using a DF/AF UAV-Enabled Relay with Downlink NOMA under Nakagami-m Fading

open access: yesSensors, 2021
This paper investigates system performance in the Internet of Things (IoT) with an energy harvesting (EH) unmanned aerial vehicle (UAV)-enabled relay under Nakagami-m fading, where the time switching (TS) and adaptive power splitting (APS) protocols are ...
Anh-Nhat Nguyen   +3 more
doaj   +1 more source

Energy Efficiency Optimization for SWIPT-Enabled IoT Network with Energy Cooperation

open access: yesSensors, 2022
As an advanced technology, simultaneous wireless information and power transfer (SWIPT), combined with the internet of things (IoT) devices, can effectively extend the online cycle of the terminal. To cope with the fluctuation of energy harvesting by the
Yang Cao   +4 more
doaj   +1 more source

Joint TS Beamforming and Hybrid TS-PS Receiving Design for SWIPT Systems

open access: yesIEEE Access, 2021
Simultaneously wireless information and power transfer technology enables information and energy to be transmitted over the same radio frequency (RF) signal.
Shiqi Wang, Lin Ma, Wei Wu
doaj   +1 more source

Rate-Energy Tradeoffs of Wireless Powered Backscatter Communication With Power Splitting and Time Switching

open access: yesIEEE Access, 2021
We consider a monostatic wireless powered backscatter communication (WPBC) system, where a device performs backscatter modulation and energy harvesting (EH) using the received signal from a multi-antenna hybrid access point.
Gerardo Sacarelo, Yun Hee Kim
doaj   +1 more source

A switch in time [PDF]

open access: yesNature Reviews Microbiology, 2015
This month's Genome Watch highlights how genome analysis can reveal insights into the adaptation of Plasmodium falciparum and Plasmodium vivax to human hosts.
Thomas, Crellen, Stefano, Iantorno
openaire   +2 more sources

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