Results 51 to 60 of about 59,671 (235)

Optimal Linear Precoding for Indoor Visible Light Communication System

open access: yes, 2017
Visible light communication (VLC) is an emerging technique that uses light-emitting diodes (LED) to combine communication and illumination. It is considered as a promising scheme for indoor wireless communication that can be deployed at reduced costs ...
Alouini, Mohamed-Slim   +3 more
core   +1 more source

A Machine Learning Based Signal Demodulator in NOMA-VLC

open access: yesJournal of Lightwave Technology, 2021
Non-orthogonal multiple access (NOMA) is a promising scheme to improve the spectral efficiency, user fairness, and overall throughput in visible light communication (VLC) systems.
Bangjiang Lin   +3 more
semanticscholar   +1 more source

Rate-Splitting Multiple Access: Unifying NOMA and SDMA in MISO VLC Channels [PDF]

open access: yesIEEE Open Journal of Vehicular Technology, 2020
The increased proliferation of connected devices requires a development of innovative technologies for the next generation of wireless systems. One of the key challenges, however, is the spectrum scarcity, owing to the unprecedented broadband penetration
Shimaa A. Naser   +6 more
semanticscholar   +1 more source

An Analysis of Distance Extension Method in Visible Light Communication (VLC) Performance

open access: yesJurnal Elkomika, 2020
ABSTRAK A Visible Light Communication (VLC) adalah teknologi yang menawarkan konsep inovatif karena VLC menerapkan cahaya tampak untuk mentransmisikan informasi dari satu titik ke titik lain.
LISA KRISTIANA   +4 more
doaj   +1 more source

Physical-Layer Network Coding Enhanced Visible Light Communications Using RGB LEDs

open access: yesIEEE Photonics Journal, 2023
Visible light communications (VLC) is a good candidate technology for the 6th generation (6G) wireless communications. Red, green, and blue (RGB) light-emitting diodes (LEDs) based VLC has become an important research branch due to its low price and high
Jian Xiong   +4 more
doaj   +1 more source

Iteratively Decoded Irregular Variable Length Coding and Sphere-Packing Modulation-Aided Differential Space-Time Spreading

open access: yes, 2007
In this paper we consider serially concatenated and iteratively decoded Irregular Variable Length Coding (IrVLC) combined with precoded Differential Space-Time Spreading (DSTS) aided multidimensional Sphere Packing (SP) modulation designed for near ...
Alamri, O.   +4 more
core   +1 more source

Effect Differences of Omega‐3 Fatty Acids From Plant Oil and Fish Oil on Human Health

open access: yesAgriFood: Journal of Agricultural Products for Food, EarlyView.
Omega‐3 fatty acids in plant oil is no less than fish oil on human health. ALA in plant oil takes directly healthy effects without conversion to DHA and EPA. Plant oil can be substitutes for fish oil to support partial ω‐3 fatty acids. For people who cannot afford fish oil, plant oil is also good for public health.
Mengxue Fang   +3 more
wiley   +1 more source

Purposeful Suppression and Reconstruction of White Light from LED for Improvement of Communication Properties

open access: yesAdvances in Electrical and Electronic Engineering, 2019
Visible Light Communication (VLC) technology uses white Light Emitting Diodes (LED) for providing illumination and communication at the same time. White LEDs have excellent illumination properties but their communication properties need improvement. This
Jan Vitasek   +6 more
doaj   +1 more source

A Cost-Efficient RGB Laser-Based Visible Light Communication System by Incorporating Hybrid Wavelength and Polarization Division Multiplexing Schemes

open access: yesFrontiers in Physics, 2021
Visible light communication (VLC) has been proven a promising technology to counter the limitations of radio frequency (RF) communication technology such as high interference and high latency issues.
CAI Xiang-Peng
doaj   +1 more source

Enhancement of Modulation Bandwidth for VLC Utilizing Green Mini‐LED Light Source

open access: yesAdvanced Physics Research, EarlyView.
This paper investigates three sizes of green Mini‐LEDs for visible light communication, focusing on modulation bandwidth and the impact of atomic layer deposition (ALD) sidewall passivation. ALD significantly enhances bandwidth (up to 21.6%), confirming suppression of nonradiative recombination.
Rongxing Wu   +9 more
wiley   +1 more source

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