【摘要】 针对CDMA最优多用户检测的难解性,结合CDMA通信的实际特点,利用EM迭代算法适宜组合求解,运算简单等特点,提出了一种基于EM迭代算法的多用户检测方法,仿真实验结果表明本方法大大降低最优多用户检测器的计算复杂度,同时达到了次最优的检测效果。更多还原

【Abstract】 In this paper, from the angle of the modern optimal calculation theory,a sub-optimal multiuser detector based on EM iterative algorithm for solving the hard problem of optimal multiuser detection in Code Division Multiple Access (CDMA) communication system is proposed.This kind of method decreases greatly computation complexity of optimal multiuser detecter and achieves suboptimal performance.更多还原