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Proceedings Paper

High-speed phosphor-LED wireless communication system utilizing no blue filter
Author(s): C. H. Yeh; C. W. Chow; H. Y. Chen; J. Chen; Y. L. Liu; Y. F. Wu
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Paper Abstract

In this paper, we propose and investigate an adaptively 84.44 to 190 Mb/s phosphor-LED visible light communication (VLC) system at a practical transmission distance. Here, we utilize the orthogonal-frequency-division-multiplexing quadrature-amplitude-modulation (OFDM-QAM) modulation with power/bit-loading algorithm in proposed VLC system. In the experiment, the optimal analogy pre-equalization design is also performed at LED-Tx side and no blue filter is used at the Rx side for extending the modulation bandwidth from 1 MHz to 30 MHz. In addition, the corresponding free space transmission lengths are between 75 cm and 2 m under various data rates of proposed VLC. And the measured bit error rates (BERs) of < 3.8×10-3 [forward error correction (FEC) limit] at different transmission lengths and measured data rates can be also obtained. Finally, we believe that our proposed scheme could be another alternative VLC implementation in practical distance, supporting < 100 Mb/s, using commercially available LED and PD (without optical blue filtering) and compact size.

Paper Details

Date Published: 12 September 2014
PDF: 6 pages
Proc. SPIE 9193, Novel Optical Systems Design and Optimization XVII, 91931A (12 September 2014); doi: 10.1117/12.2060653
Show Author Affiliations
C. H. Yeh, Industrial Technology Research Institute (Taiwan)
Fu Jen Catholic Univ. (Taiwan)
C. W. Chow, National Chiao Tung Univ. (Taiwan)
H. Y. Chen, Industrial Technology Research Institute (Taiwan)
National Chiao Tung Univ. (Taiwan)
J. Chen, National Chiao Tung Univ. (Taiwan)
Y. L. Liu, Industrial Technology Research Institute (Taiwan)
Y. F. Wu, National Chiao Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 9193:
Novel Optical Systems Design and Optimization XVII
G. Groot Gregory; Arthur J. Davis, Editor(s)

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