LOW-COMPLEXITY BLIND MULTIUSER DETECTION OF DS-CDMA SIGNAL IN DISPERSIVE CHANNELS  

作　　者：Lin Zhiqiang You Xiaohu Wang Yong(National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096) 

出　　处：《Journal of Electronics(China)》2001年第4期330-336,共7页电子科学学刊（英文版）

摘　　要：The problem of blind multiuser detection in dispersive channels of Code-Division Multiple-Access (CDMA) in the presence of both Multiple-Access Interference (MAI) and InterSymbol Interference (ISI) is considered. In practice, it is showed that by incorporating the desired user's signature waveform and the auxiliary vector, the information of the user can be identified using the suboptimal subspace method. The major contribution of this paper is to propose a minimum-mean-square-error detector with the suboptimal subspace-based blind technique for joint suppression of MAI and ISI in the dispersive CDMA channels.The problem of blind multiuser detection in dispersive channels of Code-Division Multiple-Access (CDMA) in the presence of both Multiple-Access Interference (MAI) and In-terSymbol Interference (ISI) is considered. In practice, it is showed that by incorporating the desired user's signature waveform and the auxiliary vector, the information of the user can be identified using the suboptimal subspace method. The major contribution of this paper is to propose a minimum-mean-square-error detector with the suboptimal subspace-based blind technique for joint suppression of MAI and ISI in the dispersive CDMA channels.

关 键 词：CODE-DIVISION MULTIPLE-ACCESS MULTIUSER detection MULTIPLE-ACCESS INTERFERENCE Intersymbol INTERFERENCE 

分 类 号：TN[电子电信]