LSCMA在DS-CDMA系统中的应用  

The Applications of LSCMA in DS-CDMA System

作　　者：石瑞华[1] 

机构地区：[1]苏州工业职业技术学院,江苏苏州215104

出　　处：《大众科技》2011年第12期7-9,共3页Popular Science & Technology

摘　　要：多用户检测主要应用于CDMA接收机设计中以消除多址干扰(MAI)。盲自适应多用户检测不需要训练序列,只需要知道期望用户的特征波形。LSCMA是一种常用的恒模算法,具有收敛速度快的优点。论文将LSCMA应用于DS-CDMA系统中,对期望用户的信号进行检测,并通过仿真验证了算法的可行性。Multi-user detection is mainly used in CDMA receiver design to eliminate multiple access interference （MAI）. Blind adaptive multi-user detection does not require training sequences, and only needs to know the characteristic waveform of the desired user. LSCMA is a common constant modulus algorithm, with the advantages of fast convergence. In this paper, LSCMA is used in DS-CDMA system in order to detect the signal of the desired user. The results of simulation show the feasibility of the algorithm.

关 键 词：直接序列码分多址 最陡下降恒模算法 最小二乘恒模算法 信干比 

分 类 号：TN929.5[电子电信—通信与信息系统]