{"title":"DS-BPSK和DS-QPSK CDMA系统的性能比较","authors":"Chua Peng Huat","doi":"10.1109/ISSSTA.1998.722488","DOIUrl":null,"url":null,"abstract":"QPSK (quadrature phase shift keying) has been known to be a bandwidth efficient modulation format. The performances of DS-BPSK (direct sequence binary phase shift keying) and DS-QPSK (direct sequence quadrature phase shift keying) modulation formats in a CDMA (code division multiple access) environment are compared in this study to see if this efficiency is preserved under the above conditions. This comparison study includes the effects of bandpass filtering which is not found in current literature. Parameters of interest are the BER (bit error rate) and the capacity supported.","PeriodicalId":116377,"journal":{"name":"1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1998-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Performance comparison of DS-BPSK and DS-QPSK CDMA systems\",\"authors\":\"Chua Peng Huat\",\"doi\":\"10.1109/ISSSTA.1998.722488\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"QPSK (quadrature phase shift keying) has been known to be a bandwidth efficient modulation format. The performances of DS-BPSK (direct sequence binary phase shift keying) and DS-QPSK (direct sequence quadrature phase shift keying) modulation formats in a CDMA (code division multiple access) environment are compared in this study to see if this efficiency is preserved under the above conditions. This comparison study includes the effects of bandpass filtering which is not found in current literature. Parameters of interest are the BER (bit error rate) and the capacity supported.\",\"PeriodicalId\":116377,\"journal\":{\"name\":\"1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333)\",\"volume\":\"68 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.1998.722488\",\"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.1998.722488","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Performance comparison of DS-BPSK and DS-QPSK CDMA systems
QPSK (quadrature phase shift keying) has been known to be a bandwidth efficient modulation format. The performances of DS-BPSK (direct sequence binary phase shift keying) and DS-QPSK (direct sequence quadrature phase shift keying) modulation formats in a CDMA (code division multiple access) environment are compared in this study to see if this efficiency is preserved under the above conditions. This comparison study includes the effects of bandpass filtering which is not found in current literature. Parameters of interest are the BER (bit error rate) and the capacity supported.
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