Experiment on hierarchical transmission scheme for visible light communication using LED traffic light and high-speed camera

被引：47

作者：

Arai, Shintaro ^{[1
]}

Mase, Shohei ^{[1
]}

Yamazato, Takaya ^{[2
]}

Endo, Tomohiro ^{[1
]}

Fujii, Toshiaki ^{[1
]}

Tanimoto, Masayuki ^{[1
]}

Kidono, Kiyosumi ^{[3
]}

Kimura, Yoshikatsu ^{[3
]}

Ninomiya, Yoshiki ^{[3
]}

机构：

[1] Nagoya Univ, Dept Elect Engn & Comp Sci, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan

[2] Nagoya Univ, EcoTopia Sci Inst, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[3] Toyota Cent Res & Dev Labs Inc, Aichi 48011, Japan

来源：

2007 IEEE 66TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5 | 2007年

关键词：

D O I：

10.1109/VETECF.2007.456

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

LEDs are expected as lighting sources for next generation, and data transmission system using LEDs attract attention. In this paper, we present hierarchical coding scheme using LED traffic lights and high-speed camera for Intelligent Transport Systems (ITS) application. Further, if each of LEDs in. traffic lights is individually modulated, parallel data transmissions are possible using a camera as a reception device. Such parallel LED-camera channel can be in deled as spatial low-pass filtered channel of which the cut-off frequency vanes according to the distance. To overcome, we propose hierarchical coding scheme based on 2D fast Haar wavelet transform. As results, the proposed hierarchical transmission schemes outperform the conventional on-off keying and the reception of high priority data is guaranteed even LED-camera distance is further.

引用

页码：2174 / +

页数：2

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