{"title":"Research on Unite DAPPM with Turbo Code in Free Space Optical Communication","authors":"Fei Yang, Xin Ming, Yongzhe Xu, Ziqiang Huang","doi":"10.1109/ICCT46805.2019.8947108","DOIUrl":null,"url":null,"abstract":"In order to improve the utilization of frequency band in Free Space Optical communication (FSO) system and mitigate the negative effects of atmospheric turbulence noise on the system, a differential amplitude pulse-position modulation (DAPPM) based on Turbo coding is put forward. Firstly, the Gamma-Gamma turbulence channel model is introduced. Based on this, the symbolic structure, frequency band characteristics, modulation and demodulation method of DAPPM are analyzed. Finally, the FSO system based on Turbo coding and DAPPM is analyzed and numerical simulation is carried out using MATLAB simulation software. The results show that the introduction of Turbo coding technology in DAPPM optical communication system can deal with the influence of channel noise and reduce the system error rate better.","PeriodicalId":306112,"journal":{"name":"2019 IEEE 19th International Conference on Communication Technology (ICCT)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE 19th International Conference on Communication Technology (ICCT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCT46805.2019.8947108","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
In order to improve the utilization of frequency band in Free Space Optical communication (FSO) system and mitigate the negative effects of atmospheric turbulence noise on the system, a differential amplitude pulse-position modulation (DAPPM) based on Turbo coding is put forward. Firstly, the Gamma-Gamma turbulence channel model is introduced. Based on this, the symbolic structure, frequency band characteristics, modulation and demodulation method of DAPPM are analyzed. Finally, the FSO system based on Turbo coding and DAPPM is analyzed and numerical simulation is carried out using MATLAB simulation software. The results show that the introduction of Turbo coding technology in DAPPM optical communication system can deal with the influence of channel noise and reduce the system error rate better.
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