A Gb/s VLC Transmission Using Hardware Preequalization Circuit

被引：64
|
作者：
Huang, Xingxing [1 ]
Shi, Jianyang [1 ]
Li, Jiehui [1 ]
Wang, Yiguang [1 ]
Chi, Nan [1 ]
机构：
[1] Fudan Univ, Minist Educ, Dept Commun Sci & Engn, Key Lab Informat Sci Electromagnet Waves, Shanghai 200433, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2015年 / 27卷 / 18期
基金：
中国国家自然科学基金;
关键词：
Visible light communication; pre-equalization; OFDM;
D O I：
10.1109/LPT.2015.2445781
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, we proposed a constant-resistance symmetrical bridged-T amplitude equalizer for high-speed visible light communication (VLC) system. Using the hardware equalizer, we successfully demonstrated a gigabit per second VLC transmission over 80-cm free space based on a RGB LED. The measured bit error rates (BERs) for the signals in 64-quadratic-amplitude modulation (64QAM) single carrier modulation at 1.05-Gb/s, 64QAM-orthogonal frequency division multiplexing (OFDM) at 1.05 Gb/s, and bit and power loading OFDM modulation at 1.42 Gb/s, are under 7% pre-forward error correction (pre-FEC) limit of 3.8 x 10(-3), clearly validating the feasibility of the proposed equalizer. Compared with the system without using the equalizer, the BER performance of the VLC systems can be improved at least by 1 order of magnitude. Moreover, the equalizer can be easily integrated into amplifier or LED because of its compact size and easy installation for just using passive component. To the best of our knowledge, it is the highest data rate with longest transmission distance using preequalization circuit.
引用
收藏
页码：1915 / 1918
页数：4
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