High-Speed Bi-directional Optical Wireless System in Non-Directed Line-of-Sight Configuration

被引：44

作者：

Cossu, Giulio ^{[1
,2
]}

Corsini, Raffaele ^{[1
,2
]}

Ciaramella, Ernesto ^{[1
,2
]}

机构：

[1] Scuola Super Sant Anna, I-56124 Pisa, Italy

[2] CNIT Photon Networks Natl Lab, I-56124 Pisa, Italy

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2014年 / 32卷 / 10期

关键词：

Discrete multi-tone; light-emitting diodes; visible light communication; TRANSMISSION;

D O I：

10.1109/JLT.2014.2315667

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：

We propose and experimentally demonstrate the first bi-directional optical wireless link operating in non-direct line-of-sight (Nd-LOS). The system is based on visible light emitting diode (LED) for downlink and infrared LED for uplink. We achieve around 250 Mbit/s for both downstream and upstream transmission, with the ambient light noise of usual indoor illumination level (500 lx), produced by warm-white LED. 100 Mbit/s are guaranteed inside 12 m(2) of a common room scenario, without LOS tracking. An optimized discrete multi-tone modulation gives bit-error-ratios always below of the common forward-error-correction threshold of 1.5 x 10(-3). These results indicate that this scheme has great potential for practical VLC system implementation.

引用

页码：2035 / 2040

页数：6

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