一种预处理的MIMO MC-CDMA恒模多用户盲检测  

A Pre-processed Constant Modulus Multi-user Blind Detection in MIMO MC-CDMA System

作　　者：石瑞华[1] 酆广增[1] 

机构地区：[1]南京邮电大学通信与信息工程学院,南京210003

出　　处：《电子与信息学报》2009年第3期645-648,共4页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60472104)资助课题

摘　　要：该文提出一种下行MIMO MC-CDMA系统的半盲多用户恒模接收系统,在恒模检测前对接收信号进行预处理,把MIMO接收系统转化成多个SISO(单发单收)接收系统,用SISO的恒模算法检测信号,减少了多用户多径干扰的影响,明显提高了接收系统的检测性能。A semi-blind multi-user constant modulus receiving system for downlink MIMO MC-CDMA system is proposed. The received signals are pre-processed before constant modulus detection, then the MIMO receiving system is transformed into several SISO receiving systems. The received signals are detected by SISO modulus algorithm. The improved method reduces the influence of multi-user interference and multi-path interference. It improves the detection performance obviously.

关 键 词：多输入多输出 多载波码分多址 多用户 最小二乘恒模算法 

分 类 号：TN929.5[电子电信—通信与信息系统]