Results 31 to 40 of about 128,958 (292)

Visible Light Fidelity Technology: Survey [PDF]

open access: yesIraqi Journal of Computer, Communication, Control and System Engineering, 2021
Wireless Fidelity (Wi-Fi) is particularly popular today. Every place has hotspots to access the internet via Wi-Fi, including homes, offices, colleges, and other public places. This increased number of users, and hence the use of bandwidth, has led to radio spectrum congestion.
openaire   +1 more source

An Artificial Neural Network-Based Handover Scheme for Hybrid LiFi Networks

open access: yesIEEE Access, 2022
Combining the ultra-high user throughput of the light fidelity (LiFi) and the ubiquitous coverage of wireless fidelity (WiFi), the hybrid LiFi and WiFi network (HLWNet) demonstrates unparalleled advantages in indoor wireless data transmission. Due to the
Guanghui Ma   +2 more
doaj   +1 more source

A Study on the Feasibility of LiFi in an Intra-Vehicular Data Transmission Application

open access: yesIEEE Access
Given the recent advances in information technology, speed has become an important requirement in data transmission. In this regard and given that an LED (light emitting diode) can turn on and off for several thousands, even millions, of times per second,
Hongyu Guan, Manolo Dulva Hina
doaj   +1 more source

Naturally Derived Organic Dyes for LED Lightings of High Color Rendering and Fidelity Index

open access: yes, 2021
Light-emitting diodes (LEDs) are a lighting technology with a huge and ascending market. Typically, LED backlights are often paired with inorganic phosphors made from rare-earth elements (REEs) to tune the emission lineshapes for different applications ...
Christine K., Luscombe   +2 more
core   +1 more source

Photoinhibiting via simultaneous photoabsorption and free-radical reaction for high-fidelity light-based bioprinting

open access: yesNature Communications, 2023
Light-based 3D bioprinting is now employed widely to fabricate geometrically complex constructs for various biomedical applications. However, the inherent light scattering defect creates significant challenges in patterning dilute hydrogels to form high ...
Ning He   +11 more
doaj   +1 more source

Data Transmission by Light Fidelity

open access: yes, 2020
Li-Fi Stands for Light-Fidelity. It is a New Technology and was proposed by The German Physicist Herald Haas in 2011. Li-Fi Provides Transmission of Data Through Illumination and sends Data Through an LED Light Bulb That Varies in Intensity Faster than Human Eye can’t Detect. In This Paper, We will be discussing The Technology in Detail and also how Wi-
Sanju Kumar   +2 more
openaire   +2 more sources

Recognition of false alarms in fall detection systems

open access: yes, 2011
Falls are a major cause of hospitalization and injury-related deaths among the elderly population. The detrimental effects of falls, as well as the negative impact on health services costs, have led to a great interest on fall detection systems by the ...
Janet Light   +13 more
core   +1 more source

Optoelectronics Interfaces for a VLC System for UHD Audio-Visual Content Transmission in a Passenger Van: HW Design

open access: yesSensors
This work aims to provide the hardware (HW) design of the optoelectronics interfaces for a visible-light communication (VLC) system that can be employed for several use cases. Potential applications include the transmission of ultra-high-definition (UHD)
Carlos Iván del Valle Morales   +4 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Light fidelity (Li-Fi): towards all-optical networking [PDF]

open access: yes, 2013
Motivated by the looming radio frequency (RF) spectrum crisis, this paper aims at demonstrating that optical wireless communication (OWC) has now reached a state where it can demonstrate that it is a viable and matured solution to this fundamental ...
Harald Haas   +5 more
core   +1 more source

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