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Interference mitigation for visible light communications in underground mines using angle diversity receivers
(MDPI, 2020)
This paper proposes two solutions based on angle diversity receivers (ADRs) to mitigate inter-cell interference (ICI) in underground mining visible light communication (VLC) systems, one of them is a novel approach. A ...
Estudo e implementação de um sistema de comunicação óptico sem fio
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2016-07-12)
In a communication system via visible light, and the use as lighting can transmit information using light intensity modulation at the transmitter and direct detection at the receiver, this type of system has free use range ...
Estudo e desenvolvimento de um sistema de comunicação via luz visível para transmissão de dados via microcontroladores
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2018-12-18)
With the growth and expansion of technology there has also been a great impact in the way we communicate and transmit information. The search for portability, for example, led to the emergence of technologies for wireless ...
Visible Light Induced Cationic Polymerization of Epoxides by Using Multiwalled Carbon Nanotubes
(Wiley VCH Verlag, 2018-07)
The visible light induced cationic polymerization of epoxides can be achieved by means of multiwalled carbon nanotubes (MWCNTs), which act as visible light photoinitiators via a radical-induced cationic photopolymerization ...
Comunicação por luz visível led a led comparando diferentes configurações no transmissor e no receptor
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2017-02-24)
In this work a study was carried out on visible light communication (VLC), which consists in the use of the same light that illuminates the environment, to transmit data using LEDs on the transmitter and also on the receiver. ...
Visible light enhanced Cr(VI) removal from aqueous solution by nanoparticulated zerovalent iron
(Elsevier, 2014-02)
Cr(VI) removal using nanoparticulated zerovalent iron is enhanced under visible light in comparison with the dark process. Using an Fe:Cr(VI) molar ratio (MR) of 1, 77% removal was obtained after two hours under irradiation, ...
Técnica de comunicação por luz visível em um conversor rebaixador para sistemas de iluminação a LED
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2018-02-27)
This work presents the complete formulation of a synchronous buck converter operating as a
Light Emitting Diode (LED) driver for Visible Light Communication (VLC). It also presentes
a state of the art review on VLC ...
Secure hybrid RF/VLC under statistical queuing constraints
(2021-09-06)
This paper evaluates the effective capacity and maximum average arrival rate of a hybrid radio frequency (RF) and visible light communication (VLC) network in the presence of an eavesdropper. It is assumed that the data ...
Desenvolvimento de um sistema de comunicação por luz utilizando dispositivo de rádio definido por software
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2022-08-30)
The main target of this paper is to present the development steps of a Optical Wireless
Communication (OWC) system applied to solid-state lighting (SSL) with frequency suitable
to an universal software radio peripheral ...
Desenvolvimento de blocos para processamento de dados utilizando plataforma open-source de software-defined radio para controle de sistemas de comunicação por luz visivel
(Universidade Federal de Santa MariaBrasilEngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia ElétricaCentro de Tecnologia, 2023-03-30)
As a complement to radio frequency-based communication, the visible light communication
helps to decongest the data usage in the electromagnetic spectrum. This work presents a procedural
methodology for the development ...