Results 1 to 10 of about 59,671 (235)

Fibre optic-VLC versus laser-VLC: a review study

open access: yesPhotonic Network Communications, 2023
AbstractThe exponential increase in the demand for a fast and reliable wireless mobile network motivates the need for researchers to engage more actively in visible light communication (VLC) technology. This increase happens in parallel with the augmentation of the population to be accommodated. As a result, the radio frequency spectrum is overcrowded.
R. C. Fon   +3 more
openaire   +2 more sources

Optical Performance and Moisture Stability Enhancement of Flexible Luminescent Films Based on Quantum-Dot/Epoxy Composite Particles

open access: yesNanomaterials, 2021
Quantum dots (QDs) have been widely applied in luminescent sources due to their strong optical characteristics. However, a moisture environment causes their quenching, leading to an inferior optical performance in commercial applications.
Guanwei Liang   +6 more
doaj   +1 more source

Research on Relay Technology of Visible Light Communication

open access: yesGuangtongxin yanjiu, 2021
As a beneficial supplement to radio frequency communication, Visible Light Communication (VLC) can provide highspeed, ultra-low delay, green, low-cost, safe and reliable communication services. However, limited coverage range has become the bottleneck of
Man-jing ZHU, Yu-hao WANG, Xiao-dong LIU
doaj   +1 more source

Coverage Characteristics Analysis of Heterogeneous Optical Beams based Visible Light Communications

open access: yesGuangtongxin yanjiu, 2022
Due to the research paradigm of the conventional Visible Light Communications (VLC), researchers usually assume that the optical sources follow the Lambertian spatial radiation characteristics.
Ju-peng DING   +4 more
doaj   +1 more source

A Scheme of CAP-DPIM Hybrid Mudulation for VLC

open access: yesGuangtongxin yanjiu, 2021
In order to improve the performance of indoor Visible Light Communication (VLC) system, a hybrid modulation scheme combining Carrierless Amplitude Phase (CAP) modulation and Digital Pulse Interval Modulation (DPIM) is proposed.
Jia-jun XIN, Xu-dong WANG, Nan WU
doaj   +1 more source

Non-Orthogonal Multiple Access for Hybrid VLC-RF Networks with Imperfect Channel State Information [PDF]

open access: yes, 2020
The present contribution proposes a general framework for the energy efficiency analysis of a hybrid visible light communication (VLC) and Radio Frequency (RF) wireless system, in which both VLC and RF subsystems utilize nonorthogonal multiple access ...
Al-Qutayri, Mahmoud   +4 more
core   +2 more sources

Experimental Research on Underwater Visible LightTwo-way Voice Communication based on PIN

open access: yesGuangtongxin yanjiu, 2022
Aiming at the problems of limited communication distance and low transmission rate of underwater radio frequency communication system, Visible Light Communication (VLC) system provides a solution for underwater medium and long distance high-speed ...
Jie-hui LIU   +4 more
doaj   +1 more source

Analisis Performansi Multi User Detection pada Kanal NLOS untuk Sistem NOMA-VLC

open access: yesJurnal Elkomika, 2021
ABSTRAK Non-orthogonal multiple access (NOMA), mulai diteliti untuk dapat digunakan sebagai teknik multiple access yang efektif pada jaringan 5G karena teknik ini dapat menghemat bandwidth modulasi.
BIMA SURYA PRATAMA   +2 more
doaj   +1 more source

A cross-layer heuristic algorithm for addressing shadowing problem in optical attocell networks [PDF]

open access: yes, 2020
The performance of visible light communication (VLC)-based optical attocell networks degrades due to shadowing caused by opaque objects. In order to improve reliability, we propose a cross-layer algorithm to find the optimal routing and resource ...
Colle, Didier   +2 more
core   +1 more source

The Performance Comparison of SC-PPM Receiver Models

open access: yesHittite Journal of Science and Engineering, 2023
Visible light communication (VLC) technology has arisen as promising candidate to solve the critical challenges of wireless communication networks. In particular, the evolving explosion in use of internet services requiring high bandwidth will soon ...
Mehmet Sonmez
doaj   +1 more source

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