Analysis of the effects of LED direction on the performance of visible light communication system

被引:26
作者
Do, Trong-Hop [1 ]
Hwang, Junho [1 ]
Yoo, Myungsik [1 ]
机构
[1] Soongsil Univ, Sch Elect Engn, Seoul, South Korea
关键词
Light-emitting diodes; Photo diodes; Signal-to-noise ratio; Illuminance; Angle;
D O I
10.1007/s11107-012-0390-y
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Visible light communication (VLC) is expected to be the next generation of indoor wireless communication. A VLC system uses many LED chips, and its performance is greatly affected by the direction of light-emitting diodes (LEDs). Normally, the LEDs are directed vertically downward to the floor. In this paper, we introduce an LED layout scheme in which the LEDs tilt toward the room corners. The effects of changing LED direction on system performance, including illuminance, received power, and SNR, are analyzed. The analysis is then verified by the simulations.
引用
收藏
页码:60 / 72
页数:13
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