{"title":"采用DCO-OFDM调制的24mbit /s红色led可见光通信系统","authors":"Yu-Jung Wang, Siou-Lin You, Zhen-Hao Zhu, Wei-Ting Lin, Cheng-You Ho, Chi-Lun Hsu, Chun-Hsing Lee, Hsi-Pin Ma","doi":"10.1109/VLSI-DAT49148.2020.9196282","DOIUrl":null,"url":null,"abstract":"In this paper, we present a 24 Mbit/s visible light communication (VLC) system based on red light emitting diode (LED). For VLC systems, intensity modulation with direct detection (IM/DD) is widely used, which means that the transmitted signal must be nonnegative and real-valued. In this system, we implemented the DCbiased optical orthogonal frequency division multiplexing (DCOOFDM) architecture and solved the synchronization problem in OFDM systems. In addition, the least square (LS) algorithm is used to estimate channel response. We add partial transmit sequence (PTS) and clipping method to reduce the problem of high peak-to-average power ratio (PAPR) in OFDM system. Bit error rates (BER) is zero under 15 cm free space transmission.","PeriodicalId":235460,"journal":{"name":"2020 International Symposium on VLSI Design, Automation and Test (VLSI-DAT)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A 24 Mbit/s Red LED-based Visible Light Communication System Employing DCO-OFDM Modulation\",\"authors\":\"Yu-Jung Wang, Siou-Lin You, Zhen-Hao Zhu, Wei-Ting Lin, Cheng-You Ho, Chi-Lun Hsu, Chun-Hsing Lee, Hsi-Pin Ma\",\"doi\":\"10.1109/VLSI-DAT49148.2020.9196282\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, we present a 24 Mbit/s visible light communication (VLC) system based on red light emitting diode (LED). For VLC systems, intensity modulation with direct detection (IM/DD) is widely used, which means that the transmitted signal must be nonnegative and real-valued. In this system, we implemented the DCbiased optical orthogonal frequency division multiplexing (DCOOFDM) architecture and solved the synchronization problem in OFDM systems. In addition, the least square (LS) algorithm is used to estimate channel response. We add partial transmit sequence (PTS) and clipping method to reduce the problem of high peak-to-average power ratio (PAPR) in OFDM system. Bit error rates (BER) is zero under 15 cm free space transmission.\",\"PeriodicalId\":235460,\"journal\":{\"name\":\"2020 International Symposium on VLSI Design, Automation and Test (VLSI-DAT)\",\"volume\":\"30 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 International Symposium on VLSI Design, Automation and Test (VLSI-DAT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/VLSI-DAT49148.2020.9196282\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 International Symposium on VLSI Design, Automation and Test (VLSI-DAT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VLSI-DAT49148.2020.9196282","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 24 Mbit/s Red LED-based Visible Light Communication System Employing DCO-OFDM Modulation
In this paper, we present a 24 Mbit/s visible light communication (VLC) system based on red light emitting diode (LED). For VLC systems, intensity modulation with direct detection (IM/DD) is widely used, which means that the transmitted signal must be nonnegative and real-valued. In this system, we implemented the DCbiased optical orthogonal frequency division multiplexing (DCOOFDM) architecture and solved the synchronization problem in OFDM systems. In addition, the least square (LS) algorithm is used to estimate channel response. We add partial transmit sequence (PTS) and clipping method to reduce the problem of high peak-to-average power ratio (PAPR) in OFDM system. Bit error rates (BER) is zero under 15 cm free space transmission.
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