{"title":"路径分集(RAKE)对CDMA蜂窝系统链路可靠性的影响——一种现实的系统容量评估方法","authors":"J. S. Lee, L. Miller","doi":"10.1109/PIMRC.1996.568459","DOIUrl":null,"url":null,"abstract":"The reliability of a CDMA cellular system reverse link is formulated as the probability that the link SNR is above the required threshold, accounting for multiple users, multipath receptions, signal and multipath fading, and Rake multipath diversity processing. Calculations of reliability show the gains obtained through RAKE processing, and the necessity of this processing when multipaths exist. It is shown that when multipath interference and link reliability requirements are accounted for, the number of CDMA users can be much smaller than that predicted using median SNR values.","PeriodicalId":206655,"journal":{"name":"Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications","volume":"59 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1996-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"The effect of path diversity (RAKE) on link reliability in CDMA cellular systems-a realistic assessment of system capacity\",\"authors\":\"J. S. Lee, L. Miller\",\"doi\":\"10.1109/PIMRC.1996.568459\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The reliability of a CDMA cellular system reverse link is formulated as the probability that the link SNR is above the required threshold, accounting for multiple users, multipath receptions, signal and multipath fading, and Rake multipath diversity processing. Calculations of reliability show the gains obtained through RAKE processing, and the necessity of this processing when multipaths exist. It is shown that when multipath interference and link reliability requirements are accounted for, the number of CDMA users can be much smaller than that predicted using median SNR values.\",\"PeriodicalId\":206655,\"journal\":{\"name\":\"Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications\",\"volume\":\"59 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1996-10-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PIMRC.1996.568459\",\"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 PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PIMRC.1996.568459","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The effect of path diversity (RAKE) on link reliability in CDMA cellular systems-a realistic assessment of system capacity
The reliability of a CDMA cellular system reverse link is formulated as the probability that the link SNR is above the required threshold, accounting for multiple users, multipath receptions, signal and multipath fading, and Rake multipath diversity processing. Calculations of reliability show the gains obtained through RAKE processing, and the necessity of this processing when multipaths exist. It is shown that when multipath interference and link reliability requirements are accounted for, the number of CDMA users can be much smaller than that predicted using median SNR values.
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