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Proceedings Paper

High bandwidth based on a tapped delay line equalization in visible light communications
Author(s): Minglun Zhang; Xujing Guo; Hetian Zhu; Chao Wang; Xiaonan Bai; Xiangwen Zhai
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Paper Abstract

In the visible light communication, the white LED bandwidth severely limits the transmission rate of information. This paper presents an analog pre-equalization technology to compensate for the bandwidth of white LED. The technology not only can debug according to the actual channel changing, but also avoid the high costs of using FPGA technology. The pre-equalization technology is implemented by an analog circuit of tapped-delay-line, in the circuit we select an appropriate delay line and a digital to analog converter. In our LED visible light communication system, we can achieve a bandwidth of 150MHz,which was proved theoretically in the paper.

Paper Details

Date Published: 22 August 2015
PDF: 6 pages
Proc. SPIE 9656, International Symposium on Photonics and Optoelectronics 2015, 96560T (22 August 2015); doi: 10.1117/12.2197566
Show Author Affiliations
Minglun Zhang, Beijing Univ. of Posts and Telecommunications (China)
Xujing Guo, Beijing Univ. of Posts and Telecommunications (China)
Hetian Zhu, Beijing Univ. of Posts and Telecommunications (China)
Chao Wang, Beijing Univ. of Posts and Telecommunications (China)
Xiaonan Bai, Beijing Univ. of Posts and Telecommunications (China)
Xiangwen Zhai, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 9656:
International Symposium on Photonics and Optoelectronics 2015
Zhiping Zhou, Editor(s)

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