{"title":"Analysis of QPSK transmitted-reference systems","authors":"J. Romme, Klaus Witrisal","doi":"10.1109/ICU.2005.1570039","DOIUrl":null,"url":null,"abstract":"The usage of an additional autocorrelation branch is proposed for the demodulation of transmitted reference signals, to both relax the demands on the hardware implementation and allow for QPSK-TR signalling. The proposed autocorrelation receiver is proven to perform a complex-valued autocorrelation. Based on this insight, a discrete-time equivalent system model is derived, including a statistical characterization of the system taking into account noise, as well as intra- and inter-symbol-interference (IISI). The performance of a fractionally sampled QPSK-TR system is presented, operating at different data rates in different environments.","PeriodicalId":105819,"journal":{"name":"2005 IEEE International Conference on Ultra-Wideband","volume":"15 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2005-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2005 IEEE International Conference on Ultra-Wideband","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICU.2005.1570039","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
The usage of an additional autocorrelation branch is proposed for the demodulation of transmitted reference signals, to both relax the demands on the hardware implementation and allow for QPSK-TR signalling. The proposed autocorrelation receiver is proven to perform a complex-valued autocorrelation. Based on this insight, a discrete-time equivalent system model is derived, including a statistical characterization of the system taking into account noise, as well as intra- and inter-symbol-interference (IISI). The performance of a fractionally sampled QPSK-TR system is presented, operating at different data rates in different environments.