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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Veröffentlicht in:IEEE photonics journal 2015-10, Vol.7 (5), p.1-8
Hauptverfasser: Huang, Xingxing, Chen, Siyuan, Wang, Zhixin, Shi, Jianyang, Wang, Yiguang, Xiao, Jiangnan, Chi, Nan
Format: Artikel
Sprache:eng
Schlagworte:
adaptive bit allocation
Allocations
Bandwidth
Bit error rate
Circuits
High speed
Light emitting diodes
Links
Modulation
OFDM
Orthogonal Frequency Division Multiplexing
Phosphorescence
phosphorescent white LED
pre-equalization
Receivers
Resource management
Visible light communication (VLC)
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Zusammenfassung: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.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2015.2480541