{"title":"Test of the Modulation Bandwidth of the LED in Visible Light Communication","authors":"Xin He Miao, Kai Ren, Xiao-qiang Li, Baolian Liu","doi":"10.1109/ICNISC54316.2021.00136","DOIUrl":null,"url":null,"abstract":"More and more researchers focus on visible light communication technology in recent years because of the shortage of spectrum resource. Channel capacity and data rate are depended by the modulation bandwidth of the LED. A test system of LED's modulation bandwidth is designed. This system includes two parts: transmission and reception. The transmition circuit is BiasT structure. The receiving circuit is TIA structure. The parameters of the chip were analyzed in detail. The 3dB modulation bandwidth is about 3.15MHz. The 20dB modulation bandwidth is about 8MHz. After using a blue filter lens, the 3dB modulation bandwidth is raised to about 5.5MHz. All data is the only for the sample LED.","PeriodicalId":396802,"journal":{"name":"2021 7th Annual International Conference on Network and Information Systems for Computers (ICNISC)","volume":"148 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 7th Annual International Conference on Network and Information Systems for Computers (ICNISC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICNISC54316.2021.00136","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
More and more researchers focus on visible light communication technology in recent years because of the shortage of spectrum resource. Channel capacity and data rate are depended by the modulation bandwidth of the LED. A test system of LED's modulation bandwidth is designed. This system includes two parts: transmission and reception. The transmition circuit is BiasT structure. The receiving circuit is TIA structure. The parameters of the chip were analyzed in detail. The 3dB modulation bandwidth is about 3.15MHz. The 20dB modulation bandwidth is about 8MHz. After using a blue filter lens, the 3dB modulation bandwidth is raised to about 5.5MHz. All data is the only for the sample LED.
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