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Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link
This paper proposes a low-complexity and energy-efficient light emitting diode (LED)-to-LED communication system for Internet of Things (IoT) devices with data rates up to 200 kbps over an error-free transmission distance up to 7 cm. The system is based on off-the-shelf red-green-blue (RGB) LEDs, of...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7600371/ https://www.ncbi.nlm.nih.gov/pubmed/33050504 http://dx.doi.org/10.3390/s20205754 |
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author | Galal, Mariam Ng, Wai Pang Binns, Richard Abd El Aziz, Ahmed |
author_facet | Galal, Mariam Ng, Wai Pang Binns, Richard Abd El Aziz, Ahmed |
author_sort | Galal, Mariam |
collection | PubMed |
description | This paper proposes a low-complexity and energy-efficient light emitting diode (LED)-to-LED communication system for Internet of Things (IoT) devices with data rates up to 200 kbps over an error-free transmission distance up to 7 cm. The system is based on off-the-shelf red-green-blue (RGB) LEDs, of which the red sub-LED is employed as photodetector in photovoltaic mode while the green sub-LED is the transmitter. The LED photodetector is characterized in the terms of its noise characteristics and its response to the light intensity. The system performance is then analysed in terms of bandwidth, bit error rate (BER) and the signal to noise ratio (SNR). A matched filter is proposed, which optimises the performance and increases the error-free distance. |
format | Online Article Text |
id | pubmed-7600371 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-76003712020-11-01 Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link Galal, Mariam Ng, Wai Pang Binns, Richard Abd El Aziz, Ahmed Sensors (Basel) Letter This paper proposes a low-complexity and energy-efficient light emitting diode (LED)-to-LED communication system for Internet of Things (IoT) devices with data rates up to 200 kbps over an error-free transmission distance up to 7 cm. The system is based on off-the-shelf red-green-blue (RGB) LEDs, of which the red sub-LED is employed as photodetector in photovoltaic mode while the green sub-LED is the transmitter. The LED photodetector is characterized in the terms of its noise characteristics and its response to the light intensity. The system performance is then analysed in terms of bandwidth, bit error rate (BER) and the signal to noise ratio (SNR). A matched filter is proposed, which optimises the performance and increases the error-free distance. MDPI 2020-10-10 /pmc/articles/PMC7600371/ /pubmed/33050504 http://dx.doi.org/10.3390/s20205754 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Letter Galal, Mariam Ng, Wai Pang Binns, Richard Abd El Aziz, Ahmed Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link |
title | Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link |
title_full | Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link |
title_fullStr | Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link |
title_full_unstemmed | Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link |
title_short | Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link |
title_sort | experimental characterization of rgb led transceiver in low-complexity led-to-led link |
topic | Letter |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7600371/ https://www.ncbi.nlm.nih.gov/pubmed/33050504 http://dx.doi.org/10.3390/s20205754 |
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