Indoor Visible Light Communication: Modeling and Analysis of Multi-state Modulation

被引:6
作者
Koudelka, Petr [1 ]
Latal, Jan [1 ]
Siska, Petr [1 ]
Vitasek, Jan [1 ]
Liner, Andrej [1 ]
Martinek, Radek [2 ]
Vasinek, Vladimir [1 ]
机构
[1] VSB Tech Univ Ostrava, Fac Elect Engn & Comp Sci, Dept Telecommun, 17 Listopadu 15-2172, Ostrava 70833, Czech Republic
[2] VSB Tech Univ Ostrava, Fac Elect Engn & Comp Sci, Dept Cybernet & Biomed Engn, Ostrava 70833, Czech Republic
来源
LASER COMMUNICATION AND PROPAGATION THROUGH THE ATMOSPHERE AND OCEANS III | 2014年 / 9224卷
关键词
visible light communication; LED; subcarrier intensity modulation; multi-state modulation; M-QAM; line of sight;
D O I
10.1117/12.2063090
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
The new dynamic direction of wireless networks development is based on the idea of networks utilizing the optical radiation in the visible spectrum VLC (Visible Light Communications). The impulse of this development direction was improvement in the semiconductor lighting technologies, namely the white power LEDs (Light Emitting Diode). These types of wireless networks are denoted as the optical wireless networks for indoor spaces utilizing optical radiation in the visible spectrum. The paper deals with the issue of deployment of multi-state modulations into the indoor visible light communications in LOS (Line of Sight) configuration. The first part of the paper focuses on design of modulation element (SMD LED matrix 3 x 3) and problems connected to deployment of multi-state modulation M-QAM (subcarrier intensity modulation) through this modulation element into the indoor visible light communications (MER). The second part deals with the irradiation distribution in dark room in comparison with real room during used multi-state modulation scheme in both simulation and real measurement.
引用
收藏
页数:8
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