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http://dx.doi.org/10.7840/KICS.2011.36A.6.587

A Study on the Performance Enhancement of OFDM-Based VLC System by Using Predistortion  

Lee, Dae-Chun (국민대학교 전자공학부 광대역통신 연구실)
Choi, Kyung-Mook (국민대학교 전자공학부 광대역통신 연구실)
Park, Young-Il (국민대학교 전자공학부 광대역통신 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.36, no.6A, 2011 , pp. 587-591 More about this Journal
Abstract
In a visible light communication (VLC) system using LEDs, its nonlinearity degrades the performance. If it is compensated by using predistortion and LED's linear range is extended, then a large signal can be used as an LED input and the performance of VLC will be improved. In this paper, a predistortion curve is made by periodic measurement of LED nonlinearity, and the experimental results of predistorted OFDM is provided.
Keywords
VLC (Visible Light Communication); LED; OFDM; PREDISTORTION;
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  • Reference
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