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Evaluation of Transmission Quality of Visible Light Communication using Bit Error Rate Measurement
Nobuo Sasaki,Hiroki Shimada,Syunpei Shimada,Hiroki Kobayashi 제어로봇시스템학회 2016 제어로봇시스템학회 국제학술대회 논문집 Vol.2016 No.10
In this paper, a bit error rate testing system has been developed and the transmission quality of visible light communication was studied. An optimization of reference voltage of the comparator was performed. A measured bit error rate was less than 107 without a disturbance light. This result indicates that the developed system is applicable in indoor communication. A bit error rate clearly became worse when the disturbance light was inserted. The results showed that this testing system is possible to evaluate quantitatively the effect of disturbance light. Signal to noise ratio (SNR) at the input of comparator was calculated, and measured bit error rate was plotted versus SNR. However, a difference between measurement and theoretical curve was observed. To reduce this difference, the review of noise source and the improvement of the mounting method for transmitter/receiver, will be required.