基于天线阵列的一种预处理LCLSCM多用户检测算法  

Pre-processing linearly constrained LSCM multiuser detection algorithm using antenna arrays

作　　者：傅洪亮[1] 酆广增[1] 

机构地区：[1]南京邮电大学通信工程系,江苏南京210003

出　　处：《通信学报》2005年第8期67-71,共5页Journal on Communications

基　　金：国家"863"基金资助项目(2002AA123046);国家自然科学基金资助项目(60472104);江苏省博士创新基金资助项目(xm04-32)

摘　　要：给出了一种天线阵列信号的预处理方法,并将线性受限条件和判决反馈用于最小二乘,提出了一种基于天线阵列的预处理线性受限判决反馈最小二乘恒模多用户检测算法,称为PLC-DFB-LSCMA算法,并与判决反馈最小二乘恒模算法(DFB-LSCMA)及传统的最小二乘恒模算法(LSCMA)进行了仿真比较,仿真结果表明,PLC-DFB-LSCMA算法的信干比性能及误码性能仍优于后二者。A pre-processing linearly constrained decision-feedback based on least squares constant modulus multiuser detection algorithm （PLC-DFB-LSCMA） for antenna arrays was proposed. It pre-processed the received signals from the antenna arrays and utilized the linearly constrained least squares constant modulus algorithm based on decision feedback to detect the DS-CDMA signals. The proposed algorithm was simulated and compared with DFB-LSCMA and LSCMA. Simulation results show that the proposed PLC-DFB-LSCMA is superior to the latter.

关 键 词：天线阵列 多用户检测 线性受限 判决反馈 恒模算法 PLC—DFB—LSCMA DFB—LSCMA LSCMA 

分 类 号：TN911[电子电信—通信与信息系统]