带有块间串扰MC-CDMA的时域信道估计和多用户检测  

Time-domain channel estimation and multiuser detection for MC-CDMA systems with inter-block interference

作　　者：吴晓军[1] 殷勤业[1] 邓科[1] 

机构地区：[1]西安交通大学电子与信息工程学院,陕西西安710049

出　　处：《通信学报》2003年第2期10-17,共8页Journal on Communications

基　　金：国家自然科学基金资助项目(60272071);高等教育博士学科点科研基金资助项目(20020698024)

摘　　要：本文把带有IBI的MC-CDMA系统等效解释为特殊的直接序列码分多址(DS-CDMA)系统,并给出了相应的时域信道估计方法和时域线性最小均方误差(MMSE)多用户检测方法。仿真实验表明了本文方法的性能。This paper interprets the MC-CDMA system with IBI as an equivalently time-domain intersymbol interference (ISI) corrupted direct sequence (DS-) CDMA system with specific spreading codes. Successively, based on this representation, a time-domain channel estimation method and its corresponding time-domain linear minimum mean square error (MMSE) multiuser detection scheme are derived for the MC-CDMA system with IBI. Computer simulations illustrate the overall performance of the proposed time-domain channel estimation and the corresponding multiuser detection scheme.

关 键 词：MC-CDMA 时域信道估计 多载波码分多址 块间串扰 循环前缀 频谱效率 多用户检测 

分 类 号：TN929.533[电子电信—通信与信息系统]