{"title":"Turbo Trellis编码多重访问","authors":"A. Perotti, B. Popović","doi":"10.1109/GLOCOMW.2014.7063544","DOIUrl":null,"url":null,"abstract":"We propose a new overloaded multiple access scheme based on Turbo Trellis Coded Modulations (TTCM) which, thanks to the high gain provided by turbo coded schemes, exhibits improved performance with respect to other solutions based on Trellis Coded Modulation (TCM). Turbo Trellis Coded Multiple Access (TTCMA) performs simultaneous transmission of multiple turbo-encoded and modulated data streams intended for users experiencing similar Signal-to-Noise Ratios (SNR). Stream-specific permutations are employed in turbo code interleavers to enable stream identification and separation at the receiver. An efficient solution for the generation of sets of such permutations is also provided. TTCMA overcomes known limitations of previous TCM-based schemes, achieving a high aggregate spectral efficiency even at low SNR by exploiting the large coding gains provided by parallel concatenated schemes when the size of the transmitted information words is large.","PeriodicalId":354340,"journal":{"name":"2014 IEEE Globecom Workshops (GC Wkshps)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Turbo Trellis Coded multiple access\",\"authors\":\"A. Perotti, B. Popović\",\"doi\":\"10.1109/GLOCOMW.2014.7063544\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We propose a new overloaded multiple access scheme based on Turbo Trellis Coded Modulations (TTCM) which, thanks to the high gain provided by turbo coded schemes, exhibits improved performance with respect to other solutions based on Trellis Coded Modulation (TCM). Turbo Trellis Coded Multiple Access (TTCMA) performs simultaneous transmission of multiple turbo-encoded and modulated data streams intended for users experiencing similar Signal-to-Noise Ratios (SNR). Stream-specific permutations are employed in turbo code interleavers to enable stream identification and separation at the receiver. An efficient solution for the generation of sets of such permutations is also provided. TTCMA overcomes known limitations of previous TCM-based schemes, achieving a high aggregate spectral efficiency even at low SNR by exploiting the large coding gains provided by parallel concatenated schemes when the size of the transmitted information words is large.\",\"PeriodicalId\":354340,\"journal\":{\"name\":\"2014 IEEE Globecom Workshops (GC Wkshps)\",\"volume\":\"15 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 IEEE Globecom Workshops (GC Wkshps)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/GLOCOMW.2014.7063544\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE Globecom Workshops (GC Wkshps)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GLOCOMW.2014.7063544","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
We propose a new overloaded multiple access scheme based on Turbo Trellis Coded Modulations (TTCM) which, thanks to the high gain provided by turbo coded schemes, exhibits improved performance with respect to other solutions based on Trellis Coded Modulation (TCM). Turbo Trellis Coded Multiple Access (TTCMA) performs simultaneous transmission of multiple turbo-encoded and modulated data streams intended for users experiencing similar Signal-to-Noise Ratios (SNR). Stream-specific permutations are employed in turbo code interleavers to enable stream identification and separation at the receiver. An efficient solution for the generation of sets of such permutations is also provided. TTCMA overcomes known limitations of previous TCM-based schemes, achieving a high aggregate spectral efficiency even at low SNR by exploiting the large coding gains provided by parallel concatenated schemes when the size of the transmitted information words is large.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
