Design and experiment of post-equalization for OOK-NRZ visible light communication system  

作　　者：章双佐 郑传涛 李艳婷 叶玮琳 刘洋 

机构地区：[1]State Key Laboratory on Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University [2]College of Communication Engineering,Jilin University

出　　处：《Optoelectronics Letters》2012年第2期142-145,共4页光电子快报（英文版）

基　　金：supported by the Innovation Fund for Technology Based Firms of Changchun (No. 10ZC04);the Undergraduate Innovative Experiment Program of Jilin University (No. 2011C51174)

摘　　要：Considering that the white LED＇s spectral response decreases exponentially with the increase of carrier frequency for the on-off-keying non-return-to-zero （OOK-NRZ） visible light communication （VLC） data links, a fast-order RC high-pass filter isdesigned and fabricated as a post-equalizer （PE） to compensate the LED spectral response. Formulation and simu- lation are both available for illustrating the VLC performance with and without PE. Experiments are performed in detail for the fabricated OOK-NRZ VLC system integrated with PE. The data transmission results show that by using PE, the mea- sured carrier bandwidth is enhanced from 0.8 （0.4-1.2） MHz to 1.7 （0-1.7） MHz, and the bit-error-rate （BER） is less than 10^-9. It proves the feasibility of the proposed scheme in OOK-NRZ VLC data links.

关 键 词：Communication systems Experiments High pass filters Optical communication 

分 类 号：TN929.1[电子电信—通信与信息系统]