{"title":"CDMA系统中的联合增量码字和功率自适应","authors":"C. Lacatus, D. Popescu","doi":"10.1109/TPSD.2006.5507434","DOIUrl":null,"url":null,"abstract":"In this paper we present a distributed algorithm for joint codeword and power adaptation in the uplink of a Code Division Multiple Access (CDMA) system. The algorithm uses incremental updates for codewords and powers of individual users such that their corresponding signal-to-interference plus-noise ratios (SINR) at the receiver are maximized subject to specified power constraints. Updates are based on a steepest descent method which is a widely used digital signal processing technique, and which can be easily implemented in a wide range of hardware for communication systems. The proposed algorithm is analyzed and illustrated with numerical examples obtained from simulations.","PeriodicalId":385396,"journal":{"name":"2006 IEEE Region 5 Conference","volume":"111 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Joint incremental codeword and power adaptation in CDMA systems\",\"authors\":\"C. Lacatus, D. Popescu\",\"doi\":\"10.1109/TPSD.2006.5507434\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper we present a distributed algorithm for joint codeword and power adaptation in the uplink of a Code Division Multiple Access (CDMA) system. The algorithm uses incremental updates for codewords and powers of individual users such that their corresponding signal-to-interference plus-noise ratios (SINR) at the receiver are maximized subject to specified power constraints. Updates are based on a steepest descent method which is a widely used digital signal processing technique, and which can be easily implemented in a wide range of hardware for communication systems. The proposed algorithm is analyzed and illustrated with numerical examples obtained from simulations.\",\"PeriodicalId\":385396,\"journal\":{\"name\":\"2006 IEEE Region 5 Conference\",\"volume\":\"111 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2006-04-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2006 IEEE Region 5 Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/TPSD.2006.5507434\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2006 IEEE Region 5 Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/TPSD.2006.5507434","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Joint incremental codeword and power adaptation in CDMA systems
In this paper we present a distributed algorithm for joint codeword and power adaptation in the uplink of a Code Division Multiple Access (CDMA) system. The algorithm uses incremental updates for codewords and powers of individual users such that their corresponding signal-to-interference plus-noise ratios (SINR) at the receiver are maximized subject to specified power constraints. Updates are based on a steepest descent method which is a widely used digital signal processing technique, and which can be easily implemented in a wide range of hardware for communication systems. The proposed algorithm is analyzed and illustrated with numerical examples obtained from simulations.
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