{"title":"一种采用串联正交/PN扩展方案的多载波CDMA系统","authors":"Won-Sik Youn, L. Freiberg, V. Bhargava","doi":"10.1109/CCECE.1996.548072","DOIUrl":null,"url":null,"abstract":"Direct sequence code division multiple access (DS-CDMA) is currently of great interest for mobile communications applications. It provides reasonable privacy and security, and good immunity to interference and fading. We propose a new communication scheme combining both multi-carrier (MC) modulation and DS-CDMA with a concatenated orthogonal/pseudo-noise (PN) spreading scheme. This scheme incorporates the advantages of both DS-CDMA with a concatenated scheme, and an MC modulation technique to combat the effect of a multipath fading channel. The system performance is investigated for a single correlator and a maximal ratio combiner. The performance analysis is carried out under a multiuser and multipath Rayleigh/Rician fading environment. It is shown that the proposed system outperforms the MC-CDMA system with a conventional PN sequence.","PeriodicalId":269440,"journal":{"name":"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering","volume":"45 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1996-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A multi-carrier CDMA system using a concatenated orthogonal/PN spreading scheme\",\"authors\":\"Won-Sik Youn, L. Freiberg, V. Bhargava\",\"doi\":\"10.1109/CCECE.1996.548072\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Direct sequence code division multiple access (DS-CDMA) is currently of great interest for mobile communications applications. It provides reasonable privacy and security, and good immunity to interference and fading. We propose a new communication scheme combining both multi-carrier (MC) modulation and DS-CDMA with a concatenated orthogonal/pseudo-noise (PN) spreading scheme. This scheme incorporates the advantages of both DS-CDMA with a concatenated scheme, and an MC modulation technique to combat the effect of a multipath fading channel. The system performance is investigated for a single correlator and a maximal ratio combiner. The performance analysis is carried out under a multiuser and multipath Rayleigh/Rician fading environment. It is shown that the proposed system outperforms the MC-CDMA system with a conventional PN sequence.\",\"PeriodicalId\":269440,\"journal\":{\"name\":\"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering\",\"volume\":\"45 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1996-05-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CCECE.1996.548072\",\"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 1996 Canadian Conference on Electrical and Computer Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CCECE.1996.548072","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A multi-carrier CDMA system using a concatenated orthogonal/PN spreading scheme
Direct sequence code division multiple access (DS-CDMA) is currently of great interest for mobile communications applications. It provides reasonable privacy and security, and good immunity to interference and fading. We propose a new communication scheme combining both multi-carrier (MC) modulation and DS-CDMA with a concatenated orthogonal/pseudo-noise (PN) spreading scheme. This scheme incorporates the advantages of both DS-CDMA with a concatenated scheme, and an MC modulation technique to combat the effect of a multipath fading channel. The system performance is investigated for a single correlator and a maximal ratio combiner. The performance analysis is carried out under a multiuser and multipath Rayleigh/Rician fading environment. It is shown that the proposed system outperforms the MC-CDMA system with a conventional PN sequence.
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