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http://dx.doi.org/10.5515/KJKIEES.2010.21.10.1136

Reducing the Effects of Noise Light in an Wireless Optical Communication Using Optoelectronic Feedback  

Hwang, Da-Hyun ((Department of Electronic Engineering, Graduate School of Industry and Engineering, Seoul National University of Technology)
Lee, Seong-Ho (Department of Electronic & Information Engineering, Seoul National University of Technology)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.21, no.10, 2010 , pp. 1136-1142 More about this Journal
Abstract
In this paper, we reduced the optical noise interference using the ASK modulation with optoelectronic feedback in a wireless optical system in which a lighting LED is used as a light source. The carrier frequency of 70 kHz was generated internally by the oscillation in the optoelectronic feedback circuit, and the output light was ASK modulated at a data rate of 9.6 kbps by opening and shortening the feedback loop with the input signal. In an environment with adjacent noise lights, the ASK modulation with optoelectronic feedback improved the signal to noise ratio by about 25 dB.
Keywords
Lighting LED; Optoelectronic Feedback; ASK Modulation; Noise Reduction; Wireless Optical Communication;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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