{"title":"CSK Modulation Scheme and DNN-Based Symbol Detection in OSTAR-RIS-Aided VLC Systems","authors":"Anupma Sharma;Keshav Singh;Vimal Bhatia;Chih-Peng Li;Zhiguo Ding","doi":"10.1109/LWC.2025.3532448","DOIUrl":null,"url":null,"abstract":"Visible light communication (VLC) is an energy-efficient, green, and low-cost emerging technology for high-speed next-generation communication systems, complementing the existing radio-frequency-based technologies. In this letter, we analyze the performance of an optical simultaneously transmitting and reflecting-reflected intelligent surface (OSTAR-RIS) aided VLC system based on a color shift keying (CSK) modulation scheme. The effect of practical constraints such as, light emitting diode (LED) non-linearity, absence of line-of-sight (LoS) link and ambient noise is considered. A DNN-based symbol detector is proposed for VLC systems impaired by LED non-linearity. For performance analysis, a closed-form expression of the achieved bit error rate (BER) is derived. Further, the impact of impairments and other parameters on the system performance are highlighted. Simulation results demonstrate superiority of the CSK modulation scheme over the traditional on-off-keying (OOK) scheme in terms of both BER and data rates.","PeriodicalId":13343,"journal":{"name":"IEEE Wireless Communications Letters","volume":"14 4","pages":"1094-1098"},"PeriodicalIF":5.5000,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Wireless Communications Letters","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10848145/","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"COMPUTER SCIENCE, INFORMATION SYSTEMS","Score":null,"Total":0}
引用次数: 0
Abstract
Visible light communication (VLC) is an energy-efficient, green, and low-cost emerging technology for high-speed next-generation communication systems, complementing the existing radio-frequency-based technologies. In this letter, we analyze the performance of an optical simultaneously transmitting and reflecting-reflected intelligent surface (OSTAR-RIS) aided VLC system based on a color shift keying (CSK) modulation scheme. The effect of practical constraints such as, light emitting diode (LED) non-linearity, absence of line-of-sight (LoS) link and ambient noise is considered. A DNN-based symbol detector is proposed for VLC systems impaired by LED non-linearity. For performance analysis, a closed-form expression of the achieved bit error rate (BER) is derived. Further, the impact of impairments and other parameters on the system performance are highlighted. Simulation results demonstrate superiority of the CSK modulation scheme over the traditional on-off-keying (OOK) scheme in terms of both BER and data rates.
期刊介绍：
IEEE Wireless Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of wireless communications. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of wireless communication systems.
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