Indoor visible communication utilizing plural white LEDs as lighting
Indoor visible communication utilizing plural white LEDs as lighting
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DOI：
10.1109/pimrc.2001.965300
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
Yuichi Tanaka;T. Komine;S. Haruyama;M. Nakagawa
中科院分区：
文献类型：
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作者：
Yuichi Tanaka;T. Komine;S. Haruyama;M. Nakagawa
未来的电灯将由白色LED（发光二极管）组成。在我们的实验室中已经提出了使用白色LED灯的室内无线光通信系统，并且我们一直在研究它。因此，必须考虑它们的光程差。本文研究了光程差的影响，介绍了两种解决光程差问题的方法。一种使用OOK-RZ（开关键控，归零）编码，另一种使用光OFDM（正交频分复用）。从计算机模拟的结果，我们已经发现，这些方法是可行的无线光通信系统利用白色LED灯。
Future electric lights will be composed of white LED (light emitting diodes). Indoor wireless optical communication systems utilizing white LED lights have been proposed in our laboratory and we have been studying it. Generally, plural lights are installed in our room. Therefore, their optical path difference must be considered. In this paper, the influence of optical path difference has been investigated and two approaches for this problem are introduced. One uses OOK-RZ (on-off keying, return-to-zero) coding and the other uses optical OFDM (orthogonal frequency division multiplexing). From the results of computer simulations, we have found that these approaches are feasible for wireless optical communication systems utilizing white LED lights.