2.0-Gb/s Visible Light Link Based on Adaptive Bit Allocation OFDM of a Single Phosphorescent White LED

2.0-Gb/s Visible Light Link Based on Adaptive Bit Allocation OFDM of a Single Phosphorescent White LED

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 utiliz...

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Bibliographic Details
Main Authors: Xingxing Huang, Siyuan Chen, Zhixin Wang, Jianyang Shi, Yiguang Wang, Jiangnan Xiao, Nan Chi
Format: Article
Language:English
Published: IEEE 2015-01-01
Series:IEEE Photonics Journal
Subjects:
Visible light communication (VLC)
adaptive bit allocation
pre-equalization
OFDM
phosphorescent white LED
Online Access:https://ieeexplore.ieee.org/document/7273821/
Description
Summary: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&#x00D7;10<sup>-3</sup>. To the best of our knowledge, this is the highest white-light VLC data rate using a single phosphorescent white LED.
ISSN:1943-0655

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