【摘要】 由于CDMA系统中存在多址干扰(MAI),3G系统容量和性能受到了一定限制。利用多用户检测技术(MUD)可以很好解决这个问题。本文介绍了多用户检测的系统结构,性能测试,几种常用MUD算法,最后对多用户的发展做了展望。更多还原

【Abstract】 Because of Multi- access Interference (MAI) in CDMA systems.The cap acity and the performance of 3G mobile communication are limited. Multi- user d etection technologies are one of the most useful methods to suppress MAI. In thi s paper the structure and the performance measures of MUD and several common- used multi- user detections are introduced.更多还原