{"title":"正交频分复用:一种多载波调制方案","authors":"Yiyan Wu, W. Zou","doi":"10.1109/ICCE.1995.517870","DOIUrl":null,"url":null,"abstract":"This paper presents a multi-carrier digital modulation technique-orthogonal frequency division multiplexing. A review of the technique and its development and implementation are provided. The advantages and disadvantages in comparison to other modulation techniques are also discussed. The ideas of using a guard interval to accommodate long delay ghosts and of creating spectrum notches to combat co-channel interferences, as well as of assigning different order of modulations or power levels to different sub-carriers for layered services are discussed. The effects of phase noise and the peak-to-average power ratio of the OFDM signal are also analysed. >","PeriodicalId":306595,"journal":{"name":"Proceedings of International Conference on Consumer Electronics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1995-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"494","resultStr":"{\"title\":\"Orthogonal Frequency Division Multiplexing: A Multi-Carrier Modulation Scheme\",\"authors\":\"Yiyan Wu, W. Zou\",\"doi\":\"10.1109/ICCE.1995.517870\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a multi-carrier digital modulation technique-orthogonal frequency division multiplexing. A review of the technique and its development and implementation are provided. The advantages and disadvantages in comparison to other modulation techniques are also discussed. The ideas of using a guard interval to accommodate long delay ghosts and of creating spectrum notches to combat co-channel interferences, as well as of assigning different order of modulations or power levels to different sub-carriers for layered services are discussed. The effects of phase noise and the peak-to-average power ratio of the OFDM signal are also analysed. >\",\"PeriodicalId\":306595,\"journal\":{\"name\":\"Proceedings of International Conference on Consumer Electronics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1995-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"494\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of International Conference on Consumer Electronics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICCE.1995.517870\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of International Conference on Consumer Electronics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCE.1995.517870","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Orthogonal Frequency Division Multiplexing: A Multi-Carrier Modulation Scheme
This paper presents a multi-carrier digital modulation technique-orthogonal frequency division multiplexing. A review of the technique and its development and implementation are provided. The advantages and disadvantages in comparison to other modulation techniques are also discussed. The ideas of using a guard interval to accommodate long delay ghosts and of creating spectrum notches to combat co-channel interferences, as well as of assigning different order of modulations or power levels to different sub-carriers for layered services are discussed. The effects of phase noise and the peak-to-average power ratio of the OFDM signal are also analysed. >