基于贪心算法的CDMA多用户检测  

A Multiuser Detector Based on Greedy Algorithm for CDMA Commu ni cation

作　　者：胡艳军[1] 朱近康[1] 

机构地区：[1]中国科学技术大学个人通信与扩频实验室

出　　处：《计算机工程与应用》2003年第17期17-19,169,共4页Computer Engineering and Applications

基　　金：面向21世纪教育振兴行动计划;安徽省自然科学基金项目(编号:03042208)

摘　　要：该文从优化计算方法的角度,利用贪心算法对最优解进行分级处理,算法复杂度小等特点,将贪心算法应用于CDMA通信的多用户检测,并结合CDMA通信的实际特点,提出一种基于贪心算法的CDMA多用户检测方法,仿真实验的结果表明,该方法运算复杂度低,可获得接近最优检测的性能。In this paper,from along the degree of the the or y of optimality calculation,a multiuser detector based on greedy algorithm dire ct towards the hard problem of optimal multiuser detection in CDMA communication system is proposed.The simulation results show that the performance of error b it probability of proposed method is approach to that of optimal multiuser detec tor and the complexity is much lower than that of it.

关 键 词：多用户检测 贪心算法 CDMA通信 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]