Title :
2.0-Gb/s Visible Light Link Based on Adaptive Bit Allocation OFDM of a Single Phosphorescent White LED
Author :
Xingxing Huang ; Siyuan Chen ; Zhixin Wang ; Jianyang Shi ; Yiguang Wang ; Jiangnan Xiao ; Nan Chi
Author_Institution :
Dept. of Commun. Sci. & Eng., Fudan Univ., Shanghai, China
Abstract :
In this paper, we present a high-speed visible light communication (VLC) system based on a single commercially available phosphorescent white light-emitting diode (LED). In this system, a preequalization circuit is used to extend the modulation bandwidth, and a differential output receiver is utilized to reduce the system noise. With adaptive bit and power allocation and orthogonal frequency-division multiplexing (OFDM), we experimentally demonstrated a 2.0-Gb/s visible light link over 1.5-m free-space transmission, and the BER is under a preforward error correction limit of 3.8×10-3. To the best of our knowledge, this is the highest white-light VLC data rate using a single phosphorescent white LED.
Keywords :
OFDM modulation; error statistics; light emitting diodes; optical links; optical receivers; phosphorescence; BER; adaptive bit allocation OFDM; bit rate 2 Gbit/s; differential output receiver; free-space transmission; high-speed visible light communication system; modulation bandwidth; orthogonal frequency-division multiplexing; preequalization circuit; preforward error correction limit; single commercially available phosphorescent white light-emitting diode; single phosphorescent white LED; visible light link; Bandwidth; Bit error rate; Light emitting diodes; Modulation; OFDM; Receivers; Resource management; OFDM; Visible light communication (VLC); adaptive bit allocation; orthogonal frequency-division multiplexing (OFDM); phosphorescent white LED; phosphorescent white light-emitting diode (LED); pre-equalization;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2015.2480541
