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.
出处
《通信学报》
EI
CSCD
北大核心
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)
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
multicarrier code-division multiple access
inter-block interference
cyclic prefix
spectral efficiency
channel estimation
multiuser detection
