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Optical Engineering

Visible light communications for the implementation of internet-of-things
Author(s): Chia-Wei Chen; Wei-Chung Wang; Jhao-Ting Wu; Hung-Yu Chen; Kevin Liang; Liang-Yu Wei; Yung Hsu; Chin-Wei Hsu; Chi-Wai Chow; Chien-Hung Yeh; Yang Liu; Hsiang-Chin Hsieh; Yen-Ting Chen
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Paper Abstract

It is predicted that the number of internet-of-things (IoT) devices will be <28 billion in 2020. Due to the shortage of the conventional radio-frequency spectrum, using visible light communication (VLC) for IoT can be promising. IoT networks may only require very low-data rate communication for transmitting sensing or identity information. The implementation of a VLC link on existing computer communication standards and interfaces is important. Among the standards, universal asynchronous receiver/transmitter (UART) is very popular. We propose and demonstrate a VLC-over-UART system. Bit error rate analysis is performed. Different components and modules used in the proposed VLC-over-UART system are discussed. Then, we also demonstrate a real-time simultaneous temperature, humidity, and illuminance monitoring using the proposed VLC link.

Paper Details

Date Published: 28 June 2016
PDF: 3 pages
Opt. Eng. 55(6) 060501 doi: 10.1117/1.OE.55.6.060501
Published in: Optical Engineering Volume 55, Issue 6
Show Author Affiliations
Chia-Wei Chen, National Chiao Tung Univ. (Taiwan)
Wei-Chung Wang, National Chiao Tung Univ. (Taiwan)
Jhao-Ting Wu, National Chiao Tung Univ. (Taiwan)
Hung-Yu Chen, National Chiao Tung Univ. (Taiwan)
Kevin Liang, National Chiao Tung Univ. (Taiwan)
Liang-Yu Wei, National Chiao Tung Univ. (Taiwan)
Yung Hsu, National Chiao Tung Univ. (Taiwan)
Chin-Wei Hsu, National Chiao Tung Univ. (Taiwan)
Chi-Wai Chow, National Chiao Tung Univ. (Taiwan)
Chien-Hung Yeh, Feng Chia Univ. (Taiwan)
Yang Liu, Philips Mobile Display Systems (Hong Kong, China)
Hsiang-Chin Hsieh, Institute for Information Industry (Taiwan)
Yen-Ting Chen, Institute for Information Industry (Taiwan)

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