{"title":"具有QoS要求的矢量DSL传输的最优联合收发线性处理","authors":"D. Palomar, M. Lagunas, J. Cioffi","doi":"10.1109/ACSSC.2002.1197212","DOIUrl":null,"url":null,"abstract":"A digital subscriber line (DSL) system is considered, in which a subset of the twisted-pair copper wires within a bundle can perform a joint processing at both sides of the communication system (e.g., links between central offices and remote terminals or between central offices and private networks). The DSL channel is treated as a multi-input multi-output (MIMO) system over which many substreams are established. It is assumed that the signal constellation to be used at each substream is given with a corresponding quality of service (QoS) constraint, e.g., to guarantee a certain error probability. The aim was to optimally design joint transmit-receive linear processing to satisfy the QoS requirements with minimum transmit power. A novel multi-level water-filling algorithm is proposed to solve the problem very efficiently in practice. Numerical results were obtained from simulations using realistic DSL MIMO channel models recently developed.","PeriodicalId":284950,"journal":{"name":"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.","volume":"32 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Optimum joint transmit-receive linear processing for vectored DSL transmission with QoS requirements\",\"authors\":\"D. Palomar, M. Lagunas, J. Cioffi\",\"doi\":\"10.1109/ACSSC.2002.1197212\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A digital subscriber line (DSL) system is considered, in which a subset of the twisted-pair copper wires within a bundle can perform a joint processing at both sides of the communication system (e.g., links between central offices and remote terminals or between central offices and private networks). The DSL channel is treated as a multi-input multi-output (MIMO) system over which many substreams are established. It is assumed that the signal constellation to be used at each substream is given with a corresponding quality of service (QoS) constraint, e.g., to guarantee a certain error probability. The aim was to optimally design joint transmit-receive linear processing to satisfy the QoS requirements with minimum transmit power. A novel multi-level water-filling algorithm is proposed to solve the problem very efficiently in practice. Numerical results were obtained from simulations using realistic DSL MIMO channel models recently developed.\",\"PeriodicalId\":284950,\"journal\":{\"name\":\"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.\",\"volume\":\"32 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-11-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ACSSC.2002.1197212\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ACSSC.2002.1197212","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Optimum joint transmit-receive linear processing for vectored DSL transmission with QoS requirements
A digital subscriber line (DSL) system is considered, in which a subset of the twisted-pair copper wires within a bundle can perform a joint processing at both sides of the communication system (e.g., links between central offices and remote terminals or between central offices and private networks). The DSL channel is treated as a multi-input multi-output (MIMO) system over which many substreams are established. It is assumed that the signal constellation to be used at each substream is given with a corresponding quality of service (QoS) constraint, e.g., to guarantee a certain error probability. The aim was to optimally design joint transmit-receive linear processing to satisfy the QoS requirements with minimum transmit power. A novel multi-level water-filling algorithm is proposed to solve the problem very efficiently in practice. Numerical results were obtained from simulations using realistic DSL MIMO channel models recently developed.