Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Luis Carlos Mathias"'
Publikováno v:
IEEE Access, Vol 7, Pp 6249-6261 (2019)
Visible light communication (VLC)-based localization is a potential candidate for a wide range of indoor localization applications. In this paper, we propose a VLC architecture based on orthogonal frequency division multiplexing (OFDM) with multiple
Externí odkaz:
https://doaj.org/article/9438c1a99ac6400c834e2b205f071c2c
Publikováno v:
Caderno Brasileiro de Ensino de Física, Vol 34, Iss 1, Pp 310-323 (2017)
Recent technologies tend to invade schools triggering different ways of instructing scientific concepts. Therefore, this work used the Arduino device in an innovative rechargeable batteries analyzer assem15- bly, which also provides a fruitful instru
Externí odkaz:
https://doaj.org/article/9a96d7f290bc40d890c28936ae9da6b4
Autor:
André Luiz Batista Ferreira, Carlos Henrique Gonçalves Treviso, Luis Carlos Mathias, Marcus Vinicius Maia Rodrigues, Willian Ricardo Bispo Murbak Nunes
Publikováno v:
Semina: Ciências Exatas e Tecnológicas, Vol 35, Iss 1, Pp 39-54 (2014)
This paper presents a complete design of a UPS 3kVA for residential applications and it is an important contribution to the academic and commercial environment. It also allows the use of solar panels, can make the load in question less dependent on t
Externí odkaz:
https://doaj.org/article/d5a7a7ddc56a4a719f511d93d2147025
Autor:
Leonimer Flávio de Melo, Felipe Andrade Allemand Borges, Luis Carlos Mathias, João Maurício Rosário
Publikováno v:
Semina: Ciências Exatas e Tecnológicas, Vol 33, Iss 2, Pp 229-242 (2012)
This work subject focuses in distance learning (DL) modality by the Internet. The use of calculators and simulators software introduces a high level of interactivity in DL systems, such as Matlab software proposed by using in this work. The use of ef
Externí odkaz:
https://doaj.org/article/d4cfea102c124ababeab779682717ded
Autor:
Leonimer Flávio de Melo, Felipe Andrade Allemand Borges, Luis Carlos Mathias, João Maurício Rosário
Publikováno v:
Semina: Ciências Exatas e Tecnológicas, Vol 33, Iss 2 (2012)
Este trabalho pode enquadrar-se na modalidade de ensino a distância (EAD) através da Internet. Buscou-se aumentar a interatividade dos sistemas de EAD por meio do emprego de software de cálculo e simulações, neste trabalho pelo programa matemát
Externí odkaz:
https://doaj.org/article/f8464c05c2d14e428462a25e693c2e7a
Autor:
Luis Carlos Mathias
Publikováno v:
Biblioteca Digital de Teses e Dissertações da UELUniversidade Estadual de LondrinaUEL.
Os sistemas domoticos ainda sao pouco explorados no Brasil. Impedimentos para a sua popularizacao devem-se ao alto custo da tecnologia e o nao estabelecimento de um padrao nacional. Neste contexto, a tecnologia de comunicacao por meio de cabos da pro
Autor:
Luis Carlos Mathias
Publikováno v:
Biblioteca Digital de Teses e Dissertações da UEL
Universidade Estadual de Londrina (UEL)
instacron:UEL
Universidade Estadual de Londrina (UEL)
instacron:UEL
A multiplexação por divisão de frequências ortogonais (OFDM) tem sido amplamente aplicada em sistemas de comunicação por luz (VLC) devido às características de eficiência espectral e de combate à interferência intersimbólica e à seletivi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::96bab47331d6c2d36b56792353a46489
http://www.bibliotecadigital.uel.br/document/?code=vtls000229655
http://www.bibliotecadigital.uel.br/document/?code=vtls000229655
Publikováno v:
Optics Communications. 478:126361
The present work deals with the thorough modeling of the wavelength division multiplexing (WDM) associated with orthogonal frequency division multiplexing (OFDM) in visible light communication (VLC) systems to evaluate and mitigate the spectral cross
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f6faec4ab3780b2990e18fa0b4cdb80
https://doi.org/10.1016/j.optcom.2020.126361
https://doi.org/10.1016/j.optcom.2020.126361
Publikováno v:
Applied Optics. 59:5615
Wavelength division multiplexing (WDM) permits the light spectrum to be divided into several parallel channels, allowing the capacity of visible light communication (VLC) systems to be increased. However, the spectral overlap due to the emission spre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c91420d1521ed7341ec74bcdfc806f4
https://doi.org/10.1364/ao.391219
https://doi.org/10.1364/ao.391219
Publikováno v:
IEEE Latin America Transactions. 13:2473-2481
This work is a revision, application and comparison of the main models found in the literature for the transfer and noise functions in the channel for communications in power transmission lines (PLC ‑ power line communication). Considering the char
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb7b0be5f63defb884158db049e4704f
https://doi.org/10.1109/tla.2015.7331900
https://doi.org/10.1109/tla.2015.7331900