Decision-feedback multiple symbol detection for differential space-time block coded UWB systems

作     者：LV TieJun WANG TaoTao GAO Hui 

作者机构：Key Laboratory of Trustworthy Distributed Computing and ServiceMinistry of EducationBeijing University of Posts and Telecommunications Department of Information EngineeringThe Chinese University of Hong Kong 

出 版 物：《Science China(Information Sciences)》 (中国科学:信息科学(英文版))

年 卷 期：2013年第56卷第4期

页      面：50-59页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 

基　　金：supported by National Natural Science Foundation of China (Grant No. 60972075) 

主　　题：ultra-wideband(UWB) space-time block code(STBC) differential detection multiple symbol detection(MSD) 

摘      要：The symbol-by-symbol differential detection scheme,originally employed to detect differential spacetime block coded(DSTBC) ultra-wideband(UWB) signal in previous work,su?ers from a performance degradation compared with coherent *** this paper,a noncoherent multiple symbol detection(MSD) scheme is proposed to enhance the performance of DSTBC-UWB *** the signal model of DSTBC-UWB is analyzed,the optimal maximum likelihood(ML) MSD is derived and then a suboptimal ML-MSD is obtained by channel ***,exhaustive search based MSD is impractical in DSTBC-UWB systems since its complexity increases exponentially with observation window *** decrease the computational complexity,the decision-feedback(DF) scheme is introduced to *** resultant DF-MSD yields reasonable complexity and solid performance improvement.