{"title":"AC-power-signal-biased LED modulation method for ubiquitous visible light communication","authors":"Y. Liu, C. Lai, C. Chow, C. Yeh","doi":"10.1109/WOCC.2012.6198194","DOIUrl":null,"url":null,"abstract":"We propose and demonstrate an AC-power-signal-biased light-emitting-diode (LED) modulation. To minimize the signal distortion, the message signal is up-converted to a carrier of 400 KHz and 60 Hz AC-power signal are combined using our developed bias tee circuit. Measurement result shows a bit error rate (BER) below 10-8 at a transmission distance of 2 m. This technique is energy-efficient and compatible with AC LED, since AC to DC converter is not needed.","PeriodicalId":118220,"journal":{"name":"2012 21st Annual Wireless and Optical Communications Conference (WOCC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 21st Annual Wireless and Optical Communications Conference (WOCC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/WOCC.2012.6198194","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
We propose and demonstrate an AC-power-signal-biased light-emitting-diode (LED) modulation. To minimize the signal distortion, the message signal is up-converted to a carrier of 400 KHz and 60 Hz AC-power signal are combined using our developed bias tee circuit. Measurement result shows a bit error rate (BER) below 10-8 at a transmission distance of 2 m. This technique is energy-efficient and compatible with AC LED, since AC to DC converter is not needed.
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