{"title":"IQ Imbalance Compensation Based on Cordic Algorithm in VLC-OFDM System","authors":"Peng Liu, Yarong Guo, Yue-ming Li, Song Liu","doi":"10.1109/CYBERC.2018.00089","DOIUrl":null,"url":null,"abstract":"This study investigates the problem of in-phase and quadrature (IQ) imbalance in the visible light communication (VLC) system. The effectiveness of the blind compensation method based on coordinate rotation digital computer (cordic) algorithm against the IQ imbalance is discussed. We further verify the proposed compensation method with QPSK and 16QAM signals respectively, with simulated impairments caused by the light emitting diode (LED) nonlinearity. Additionally, the analysis of Monte Carlo simulation under the assumption of different signal-to-noise ratio (SNR) is showed where in some cases, the compensation intensity increases as the SNR increases.","PeriodicalId":282903,"journal":{"name":"2018 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery (CyberC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery (CyberC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CYBERC.2018.00089","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
This study investigates the problem of in-phase and quadrature (IQ) imbalance in the visible light communication (VLC) system. The effectiveness of the blind compensation method based on coordinate rotation digital computer (cordic) algorithm against the IQ imbalance is discussed. We further verify the proposed compensation method with QPSK and 16QAM signals respectively, with simulated impairments caused by the light emitting diode (LED) nonlinearity. Additionally, the analysis of Monte Carlo simulation under the assumption of different signal-to-noise ratio (SNR) is showed where in some cases, the compensation intensity increases as the SNR increases.
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