Results 91 to 100 of about 6,856 (205)

Indoor Positioning for Multiphotodiode Device Using Visible-Light Communications

open access: yesIEEE Photonics Journal, 2016
With the widespread use of light-emitting diodes (LEDs) for lighting, their ability to support communications through visible light has become promising for various wireless applications.
Wei Xu   +4 more
doaj   +1 more source

Etude et réalisation d'un système de communications par lumière visible (VLC/LiFi). Application au domaine automobile. [PDF]

open access: yes, 2014
The scientific problematic of this PhD is centered on the usage of Visible LightCommunications (VLC) in automotive applications. By enabling wireless communication amongvehicles and also with the traffic infrastructure, the safety and efficiency of the ...
Cailean, Alin
core   +2 more sources

A Comparative Survey of Optical Wireless Technologies: Architectures and Applications

open access: yes, 2018
New high-data-rate multimedia services and applications are evolving continuously and exponentially increasing the demand for wireless capacity of fifth-generation (5G) and beyond.
Chowdhury, Mostafa Zaman   +3 more
core   +1 more source

Review of the Reconfigurable Intelligent Surfaces in Smart Cities: Opportunities, Challenges, and Applications

open access: yesIET Smart Cities, Volume 7, Issue 1, January/December 2025.
ABSTRACT This survey synthesises state‐of‐the‐art advancements in Reconfigurable Intelligent Surfaces (RIS) and their transformation in urban wireless networks, focusing on addressing the challenges inherent to 5 G/mmWave communications. The authors begin by evaluating path loss, blockage, and interference in dense urban environments.
Haider TH. Salim ALRikabi   +3 more
wiley   +1 more source

Color-Selective Channel Modeling for Visible Light Communication (VLC)

open access: yesIEEE Access
Color-selective attenuation, a specific case of wavelength- or frequency-selective attenuation, is an under-investigated but significant factor affecting the performance of color-modulated systems, particularly in Non-Line-of-Sight (NLOS) links.
Igor S. C. Rodrigues   +3 more
openaire   +2 more sources

Signal-to-Noise Ratio Enhancements Enabling 1.6-km Outdoor Visible Light Communication Using Vehicle Lights and Cameras

open access: yesIEEE Access
Light-based communications offer a promising alternative to alleviate congestion in crowded radio frequency bands and extend communication frequencies towards the THz range.
Don E. Barber   +3 more
doaj   +1 more source

Flexible Glass Hybridized Colloidal Quantum Dots for Gb/s Visible Light Communications

open access: yesIEEE Photonics Journal, 2018
Color converting films of colloidal quantum dots (CQDs) encapsulated with flexible glass are integrated with microsize GaN LEDs (μLEDs) in order to form optical sources for high-speed visible light communications (VLC).
Caroline Foucher   +14 more
doaj   +1 more source

Recent Progress in GaN-Based High-Bandwidth Micro-LEDs and Photodetectors for High-Speed Visible Light Communication

open access: yesPhotonics
Visible light communication (VLC) is an emerging communication technology that integrates lighting and communication, offering significant advantages in terms of data transmission rates and broad application prospects.
Handan Xu   +7 more
doaj   +1 more source

Enhancement of Signal Performance in LED Visible Light Communications Using Mobile Phone Camera

open access: yesIEEE Photonics Journal, 2015
Visible light communication (VLC) is attractive as a supplementary method for future fifth-generation (5G) wireless communication owing to the shortage of radio-frequency bandwidth in conventional wireless communications.
Chi-Wai Chow   +2 more
doaj   +1 more source

Experimental Demonstration of VLC-Based Vehicle-to-Vehicle Communications Under Fog Conditions

open access: yesIEEE Photonics Journal, 2015
Vehicle-to-vehicle (V2V) communication using visible light communication (VLC) technology under fog conditions is presented. Fog is known as one of the most detrimental atmospheric conditions that causes outdoor optical wireless communications to be ...
Yong Hyeon Kim   +2 more
doaj   +1 more source

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