{"title":"DS/CDMA系统的最佳单用户检测，实现完全的MAI取消","authors":"N. R. Patel, Timothy O'Farrell","doi":"10.1109/ISSSTA.1998.722517","DOIUrl":null,"url":null,"abstract":"Conventional matched-filter detection (MFD) in a DS/CDMA system is sub-optimal when the channel noise is dominated by multiple access interference (MAI). MAI is a limiting factor to the bit error rate performance. Multi-user detector schemes have been proposed to combat MAI but these schemes have a high degree of complexity. The optimum single-user detector (OSD) considerably reduces the complexity while maintaining an improvement in the BER performance over the MFD. The first realisation of this detector (OSD-1) was proposed by O'Farrel (1989). A new interpretation of this detector architecture (OSD-2) is presented which can completely cancel MAI. A comparison of the OSD-2 with OSD-1 and the MFD is presented.","PeriodicalId":116377,"journal":{"name":"1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333)","volume":"133 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1998-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Optimum single-user detection for DS/CDMA systems achieving complete MAI cancellation\",\"authors\":\"N. R. Patel, Timothy O'Farrell\",\"doi\":\"10.1109/ISSSTA.1998.722517\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Conventional matched-filter detection (MFD) in a DS/CDMA system is sub-optimal when the channel noise is dominated by multiple access interference (MAI). MAI is a limiting factor to the bit error rate performance. Multi-user detector schemes have been proposed to combat MAI but these schemes have a high degree of complexity. The optimum single-user detector (OSD) considerably reduces the complexity while maintaining an improvement in the BER performance over the MFD. The first realisation of this detector (OSD-1) was proposed by O'Farrel (1989). A new interpretation of this detector architecture (OSD-2) is presented which can completely cancel MAI. A comparison of the OSD-2 with OSD-1 and the MFD is presented.\",\"PeriodicalId\":116377,\"journal\":{\"name\":\"1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333)\",\"volume\":\"133 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1998-09-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISSSTA.1998.722517\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISSSTA.1998.722517","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Optimum single-user detection for DS/CDMA systems achieving complete MAI cancellation
Conventional matched-filter detection (MFD) in a DS/CDMA system is sub-optimal when the channel noise is dominated by multiple access interference (MAI). MAI is a limiting factor to the bit error rate performance. Multi-user detector schemes have been proposed to combat MAI but these schemes have a high degree of complexity. The optimum single-user detector (OSD) considerably reduces the complexity while maintaining an improvement in the BER performance over the MFD. The first realisation of this detector (OSD-1) was proposed by O'Farrel (1989). A new interpretation of this detector architecture (OSD-2) is presented which can completely cancel MAI. A comparison of the OSD-2 with OSD-1 and the MFD is presented.
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