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低复杂度发光二极管到发光二极管链路中RGB发光二极管收发器的实验特性分析

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

作者信息

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

机构信息

Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UK.

College of Engineering and Technology, Arab Academy for Science, Technology & Maritime Transport, Alexandria P.O. 1029, Egypt.

出版信息

Sensors (Basel). 2020 Oct 10;20(20):5754. doi: 10.3390/s20205754.

DOI:10.3390/s20205754
PMID:33050504
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7600371/
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.

摘要

本文提出了一种用于物联网（IoT）设备的低复杂度且节能的发光二极管（LED）到LED通信系统，该系统在高达7厘米的无差错传输距离上的数据速率可达200 kbps。该系统基于现成的红绿蓝（RGB）LED，其中红色子LED在光伏模式下用作光电探测器，而绿色子LED为发射器。对LED光电探测器的噪声特性及其对光强度的响应进行了表征。然后从带宽、误码率（BER）和信噪比（SNR）方面分析了系统性能。提出了一种匹配滤波器，其优化了性能并增加了无差错距离。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/e187f28c23f3/sensors-20-05754-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/0636f6f94786/sensors-20-05754-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/a29989b138da/sensors-20-05754-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/a012d79de68c/sensors-20-05754-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/b55ed6fa03fb/sensors-20-05754-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/0010b77e1948/sensors-20-05754-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/b59b563d0729/sensors-20-05754-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/da5bfa38589e/sensors-20-05754-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/9584a69fcbab/sensors-20-05754-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/e187f28c23f3/sensors-20-05754-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/0636f6f94786/sensors-20-05754-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/a29989b138da/sensors-20-05754-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/a012d79de68c/sensors-20-05754-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/b55ed6fa03fb/sensors-20-05754-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/0010b77e1948/sensors-20-05754-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/b59b563d0729/sensors-20-05754-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/da5bfa38589e/sensors-20-05754-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/9584a69fcbab/sensors-20-05754-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1e54/7600371/e187f28c23f3/sensors-20-05754-g009.jpg

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本文引用的文献

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Visible Light Communication: A System Perspective-Overview and Challenges.可见光通信：系统视角——概述与挑战。
Sensors (Basel). 2019 Mar 7;19(5):1153. doi: 10.3390/s19051153.
2
450-nm GaN laser diode enables high-speed visible light communication with 9-Gbps QAM-OFDM.450纳米氮化镓激光二极管实现了高达9 Gbps的QAM-OFDM高速可见光通信。
Opt Express. 2015 May 18;23(10):13051-9. doi: 10.1364/OE.23.013051.