基于MATLAB实现的CDMA多用户检测  

Matlab-based Multi-user Detection of CDMA

作　　者：邹春灵 

机构地区：[1]中国移动通信集团福建有限公司龙岩分公司,364000

出　　处：《中国科技信息》2008年第18期115-117,共3页China Science and Technology Information

摘　　要：在目前可实现性的前提下,CDMA通信系统的容量受其本身的多址干扰的大小和多少决定,CDMA优越在于其是针对采用功率控制法抗多址干扰的CDMA系统。功率控制法抗多址干扰是一种原始的、简单的抗多址干扰的方法,若采用多用户检测技术抗多址干扰则CDMA系统的性能将进一步提高。多用户检测是综合考虑同时占用某个信道的所有用户或某些用户,消除或减弱其它用户对任一用户的影响,并同时检测出所有这些用户或某些用户的信息的一种信号检测方法。Under the present realizability premise, capacity of CDMA communication is decided by its size and quantity of Multiple-access interference. The advantage of CDMA is that it is a CDMA system used power control anti-Multiple-access interference. Power control method for anti-multiple-access anti- Multiple-access interference method which is original and single. The performance of CDMA system w be further enhanced if multi-user detection for ant-multiple-access interference adapted, Multi-user detection is for signal detection; overall evaluates all users or certain user＇s influence will be eliminated or weakened.In the meantime,information of all users or certain users is detected.

关 键 词：CDMA 多用户检测 多址干扰 

分 类 号：TN929.533[电子电信—通信与信息系统]