应用于色散CDMA信道中的三级PIC多用户检测算法  

Three-Stage PIC Multi-user Detection Algorithm in Dispersive CDMA Channels

作　　者：李红[1] 

机构地区：[1]北京石油化工学院自动化系,北京102617

出　　处：《北京石油化工学院学报》2004年第3期15-18,共4页Journal of Beijing Institute of Petrochemical Technology

摘　　要：分析了应用于色散码分多址(CDMA)信道中的三级并行干扰对消(PIC)多用户检测算法。通过建立色散CDMA信道的信号模型,研究了时间离散的CDMA信道的多输入多输出(MI-MO)模型,并在此基础上提出了采用非线性检测中的三级PIC算法。经过理论分析和仿真实验,表明该算法应用于色散CDMA通信系统的抗多址干扰效应有较好性能。Three-stage PIC multi-user detection algorithm applied in dispersive CDMA channels is analyzed and Dispersive CDMA channel model is established. MIMO model based on time-discrete is researched, after that, an algorithm applied for non-linear Three-Stage PIC Multi-user Detection is presented. At last, by theoretic analysis and algorithm simulation, a preferable anti-multiaccess interfere capability is obtained on Three-stage PIC multi-user detection algorithm in dispersive CDMA channels.

关 键 词：色散 信道 CDMA通信系统 多用户检测算法 PIC 并行干扰对消 码分多址(CDMA) 仿真实验 模型 性能 

分 类 号：TN929[电子电信—通信与信息系统] TN911[电子电信—信息与通信工程]