{"title":"SC-FDMA系统的二维自适应频谱效率","authors":"Ye Wu, M. Lei, Jun Du","doi":"10.1109/VETECF.2010.5594595","DOIUrl":null,"url":null,"abstract":"We propose a two-dimension adaptive spectral efficiency scheme for a new-designed single-carrier frequency division multiple access (SC-FDMA) system by flexible reference signal (RS) and data multiplexing for each user. Based on Doppler spread, each user first determines the number of SC-FDMA symbols that bear RS in a time slot, and each of such SC-FDMA symbols, based on bandwidth allocation, then serves to estimate a shortened time-domain channel impulse response (CIR) as well as bear data. The proposed design significantly outperforms the channel estimation (CE) case of Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) uplink in terms of spectral efficiency at a high Doppler spread.","PeriodicalId":417714,"journal":{"name":"2010 IEEE 72nd Vehicular Technology Conference - Fall","volume":"8 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Two-Dimension Adaptive Spectral Efficiency for SC-FDMA Systems\",\"authors\":\"Ye Wu, M. Lei, Jun Du\",\"doi\":\"10.1109/VETECF.2010.5594595\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We propose a two-dimension adaptive spectral efficiency scheme for a new-designed single-carrier frequency division multiple access (SC-FDMA) system by flexible reference signal (RS) and data multiplexing for each user. Based on Doppler spread, each user first determines the number of SC-FDMA symbols that bear RS in a time slot, and each of such SC-FDMA symbols, based on bandwidth allocation, then serves to estimate a shortened time-domain channel impulse response (CIR) as well as bear data. The proposed design significantly outperforms the channel estimation (CE) case of Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) uplink in terms of spectral efficiency at a high Doppler spread.\",\"PeriodicalId\":417714,\"journal\":{\"name\":\"2010 IEEE 72nd Vehicular Technology Conference - Fall\",\"volume\":\"8 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-10-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2010 IEEE 72nd Vehicular Technology Conference - Fall\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/VETECF.2010.5594595\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 IEEE 72nd Vehicular Technology Conference - Fall","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VETECF.2010.5594595","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Two-Dimension Adaptive Spectral Efficiency for SC-FDMA Systems
We propose a two-dimension adaptive spectral efficiency scheme for a new-designed single-carrier frequency division multiple access (SC-FDMA) system by flexible reference signal (RS) and data multiplexing for each user. Based on Doppler spread, each user first determines the number of SC-FDMA symbols that bear RS in a time slot, and each of such SC-FDMA symbols, based on bandwidth allocation, then serves to estimate a shortened time-domain channel impulse response (CIR) as well as bear data. The proposed design significantly outperforms the channel estimation (CE) case of Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) uplink in terms of spectral efficiency at a high Doppler spread.
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