{"title":"Quasi 2-bit 32-QAM OFDM based Digital RoF Link by Delta-sigma Modulation at 2.5 Gbit/s","authors":"Zu-Kai Weng, P. Dat, A. Kanno, T. Kawanishi","doi":"10.1109/MWP54208.2022.9997713","DOIUrl":null,"url":null,"abstract":"We experimentally implemented and discussed the quasi 2-bit delta-sigma modulated 32-QAM OFDM based DRoF link in detail. Optically constructing the delta-sigma modulated 2-bit QAM-OFDM data mitigated the impact of nonlinearity in optical links. After optimization, the quasi 2-bit delta-sigma modulated 32-QAM OFDM was successfully transmitted over 15-km SMF with a raw data rate of 2.5 Gbit/s at the lowest receiving power of −15.10 dBm. The proposed DRoF link structure boosted the robust anti-nonlinearity and cost-effective RRHs, which was appropriate for the beyond 5G applications.","PeriodicalId":127318,"journal":{"name":"2022 IEEE International Topical Meeting on Microwave Photonics (MWP)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 IEEE International Topical Meeting on Microwave Photonics (MWP)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWP54208.2022.9997713","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
We experimentally implemented and discussed the quasi 2-bit delta-sigma modulated 32-QAM OFDM based DRoF link in detail. Optically constructing the delta-sigma modulated 2-bit QAM-OFDM data mitigated the impact of nonlinearity in optical links. After optimization, the quasi 2-bit delta-sigma modulated 32-QAM OFDM was successfully transmitted over 15-km SMF with a raw data rate of 2.5 Gbit/s at the lowest receiving power of −15.10 dBm. The proposed DRoF link structure boosted the robust anti-nonlinearity and cost-effective RRHs, which was appropriate for the beyond 5G applications.
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