Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link

Mariam Galal; Wai Pang Ng; Richard Binns; Ahmed Abd El Aziz

doi:10.3390/s20205754

Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link

Mariam Galal, Wai Pang Ng, Richard Binns, Ahmed Abd El Aziz

Mathematics, Physics and Electrical Engineering

Research output: Contribution to journal › Article › peer-review

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Abstract

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.

Original language	English
Article number	5754
Number of pages	12
Journal	Sensors
Volume	20
Issue number	20
DOIs	https://doi.org/10.3390/s20205754
Publication status	Published - 10 Oct 2020

Keywords

LED photodetector
LED-to-LED communication
BER
matched filter
visible light communication (VLC)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/s20205754Licence: CC BY

sensors-20-05754Final published version, 1.27 MBLicence: CC BY

Cite this

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title = "Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link",

abstract = "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.",

keywords = "LED photodetector, LED-to-LED communication, BER, matched filter, visible light communication (VLC)",

author = "Mariam Galal and Ng, {Wai Pang} and Richard Binns and {Abd El Aziz}, Ahmed",

year = "2020",

month = oct,

day = "10",

doi = "10.3390/s20205754",

language = "English",

volume = "20",

journal = "Sensors",

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T1 - Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link

AU - Galal, Mariam

AU - Ng, Wai Pang

AU - Binns, Richard

AU - Abd El Aziz, Ahmed

PY - 2020/10/10

Y1 - 2020/10/10

N2 - 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.

AB - 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.

KW - LED photodetector

KW - LED-to-LED communication

KW - BER

KW - matched filter

KW - visible light communication (VLC)

U2 - 10.3390/s20205754

DO - 10.3390/s20205754

M3 - Article

SN - 1424-8220

VL - 20

JO - Sensors

JF - Sensors

IS - 20

M1 - 5754

ER -

Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link

Abstract

Keywords

UN SDGs

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