LOW-COMPLEXITY BLIND MULTIUSER DETECTION OF DS-CDMA SIGNAL IN DISPERSIVE CHANNELS
LOW-COMPLEXITY BLIND MULTIUSER DETECTION OF DS-CDMA SIGNAL IN DISPERSIVE CHANNELS作者机构:National Mobile Communications Research Laboratory Southeast University Nanjing 210096
出 版 物:《Journal of Electronics(China)》 (电子科学学刊(英文版))
年 卷 期:2001年第18卷第4期
页 面:330-336页
学科分类:0809[工学-电子科学与技术(可授工学、理学学位)] 08[工学]
主 题:Code-division multiple-access Multiuser detection Multiple-access interference Intersymbol interference
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.