Decision-feedback subset aided multiple-symbol differential detection  

作　　者：Wang Chanfei Xu Yamei Xu Lei 王婵飞;Xu Yamei;Xu Lei(School of Computer and Communication,Lanzhou University of Technology,Lanzhou 730050,P.R.China)

机构地区：[1]School of Computer and Communication,Lanzhou University of Technology,Lanzhou 730050,P.R.China

出　　处：《High Technology Letters》2020年第1期98-101,共4页高技术通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.61562058);Lanzhou University of Technology Hongliu Excellent Youth Talent Support Program。

摘　　要：In view of the inaccuracy of the estimated symbols on the edge of the observation window, a decision-feedback subset aided multiple-symbol differential detection(MSDD) framework, dubbed DF-S-MSDD, is proposed in ultra-wideband impulse radio(UWB-IR) system with differential space-time block-code(DSTBC) modulation. Specifically, motivated by the decision-feedback aided MSDD(DF-MSDD), a subset of the decision-feedback symbols is selected, and the optimal symbols are preserved, and then all the remaining symbols are optimized. Furthermore, the simulations validate that the proposed DF-S-MSDD provides solid bit error-rate performance with a low complexity in UWB-IR system with DSTBC modulation.

关 键 词：multiple-symbol DIFFERENTIAL detection(MSDD) decision-feedback(DF) decision-feedback SUBSET ULTRA-WIDEBAND IMPULSE radio(UWB-IR) DIFFERENTIAL space-time block-code(DSTBC) 

分 类 号：TN911.23[电子电信—通信与信息系统]