High-speed visible light communications using multiple-resonant equalization

被引：273

作者：

Le Minh, Hoa ^{[1
]}

O'Brien, Dominic ^{[1
]}

Faulkner, Grahame ^{[1
]}

Zeng, Lubin ^{[1
]}

Lee, Kyungwoo ^{[2
]}

Jung, Daekwang ^{[2
]}

Oh, YunJe ^{[2
]}

机构：

[1] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England

[2] Samsung Elect Co Ltd, Telecommun R&D Ctr, Suwon 442600, South Korea

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2008年 / 20卷 / 13-16期

关键词：

bandwidth (BW); equalization; multiple-resonant modulation; white light-emitting diode (LED);

D O I：

10.1109/LPT.2008.926030

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：

White light-emitting diodes (LEDs) are becoming widespread in commercial lighting applications, and there are predictions that they will be in common use in domestic applications in the future. There is also growing interest in using these devices for both illumination and communications. One of the major challenges in visible light communications is the low modulation bandwidth (BW) available from devices, which is typically several megahertz. In this letter, we describe a link that uses 16 LEDs which are modulated using a resonant driving technique, creating an overall BW of 25 MHz. This is used to implement a 40-Mb/s nonreturn-to-zero ON-OFF keying link which operates at low error rates, and also provides illumination at levels sufficient for a standard office environment.

引用

页码：1243 / 1245

页数：3