Acta Metallurgica Sinica(English letters) ›› 2013, Vol. 20 ›› Issue (4): 106-111.doi: 10.1016/S1005-8885(13)60077-1

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Indoor multisource channel characteristic for visible light communication

程荣   

  1. College of Communication Engineering, Jilin University, Changchun 130012, China
  • 收稿日期:2012-12-31 修回日期:2013-04-08 出版日期:2013-08-31 发布日期:2013-08-30
  • 通讯作者: 程荣 E-mail:dzxx33@sohu.com

Indoor multisource channel characteristic for visible light communication

Rong CHENG   

  1. College of Communication Engineering, Jilin University, Changchun 130012, China
  • Received:2012-12-31 Revised:2013-04-08 Online:2013-08-31 Published:2013-08-30
  • Contact: Rong CHENG E-mail:dzxx33@sohu.com

摘要: In this paper, we present a wavelength depended ray-tracing algorithm to model the indoor multisource channel impulse response for visible light communication (VLC). We compare the multipath loss difference between multisource and unisource channel. We also analyze the root mean square (RMS) delay spread and average time delay of three typical wavelengths as VLC holds a wide spectrum from 380 nm to 780 nm, the spectral reflectance of walls is wavelength-dependent. And the result shows that the blue light emitting diode (LED) owns a larger communication bandwidth than other wavelengths in the room with plastic walls. Also, the path loss of three different wavelengths is compared.

关键词: VLC, ray-tracing, multisource, wavelength-dependent

Abstract: In this paper, we present a wavelength depended ray-tracing algorithm to model the indoor multisource channel impulse response for visible light communication (VLC). We compare the multipath loss difference between multisource and unisource channel. We also analyze the root mean square (RMS) delay spread and average time delay of three typical wavelengths as VLC holds a wide spectrum from 380 nm to 780 nm, the spectral reflectance of walls is wavelength-dependent. And the result shows that the blue light emitting diode (LED) owns a larger communication bandwidth than other wavelengths in the room with plastic walls. Also, the path loss of three different wavelengths is compared.

Key words: VLC, ray-tracing, multisource, wavelength-dependent

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