전력선 주파수를 이용한 가시광 채널의 시분할 전송
Time Division Transmission of Visible Light Channels Using Power Line Frequency
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In this paper, we developed a new method to transmit multiple visible light channels in time division mode using the AC power line frequency in order to prevent the crosstalk between adjacent optical signals. Synchronizing pulses are generated from the 220 V power line, and one pulse period is subdivided into several time slots for visible light channels. Each channel transmits data in a predefined time slot without interfering adjacent channels. In experiments, synchronizing pulses with a repetition rate of 240 Hz were generated from the 60 Hz power line, and three VLC channels with a bit rate of 9.6 kbps transmitted data independently using the time slots between synchronizing pulses. This configuration is very useful in constructing time division VLC networks for multiple sensors.
Abstract
In this paper, we developed a new method to transmit multiple visible light channels in time division mode using the AC power line frequency in order to prevent the crosstalk between adjacent optical signals. Synchronizing pulses are generated from the 220 V power line, and one pulse period is subdivided into several time slots for visible light channels. Each channel transmits data in a predefined time slot without interfering adjacent channels. In experiments, synchronizing pulses with a repetition rate of 240 Hz were generated from the 60 Hz power line, and three VLC channels with a bit rate of 9.6 kbps transmitted data independently using the time slots between synchronizing pulses. This configuration is very useful in constructing time division VLC networks for multiple sensors.
참고문헌 (7)
- A. M. Street, "Indoor optical wireless systems-a review", Opt. Quantum Electron., 29, pp.349~378 (1997)
- J. M. Kahn, "Wireless infrared communications", Proc. IEEE, 85(2), pp.265~298 (1997)
- S. H. Lee, "Reducing the effects of ambient noise light in an indoor optical wireless system using polarizers", Micro. Opt. Techn. Let., 40(3), pp.228~231 (2004)
- T. Komine, "Fundamental analysis for visible-light communication system using LED lights", IEEE Transactions on Consumer Electronics, 50(1), pp.100~107 (2004)
- F. Delgado, "Design and implementation of an ethernet-VLC interface for broadcast transmissions", IEEE Commun. Lett., 14(12), pp.1089~1091 (2010)
- 이성호, "3-Level LED 변조를 이용한 동기식 가시광통신 시스템", 센서학회지, 22(6), pp.421~427 (2013), 한국센서학회
- J. C. Palais, "Fiber Optic Communications", pp.183~ (2005), Pearson Prentice Hall