CDMA多用户检测技术研究动态  

Trend of CDMA about Multi-user Detection

作　　者：李秀华 付永庆[1,2] 张文浩 

机构地区：[1]哈尔滨工程大学电子工程系,黑龙江哈尔滨150001 [2]黑龙江移动通信公司,黑龙江哈尔滨150001

出　　处：《应用科技》2000年第12期11-13,共3页Applied Science and Technology

摘　　要：CDMA系统由于其用户容量大 ,频谱利用率高、支持多速率通信等特点而优于其它多址方式 ,近年来在移动通信系统中得到越来越多的重视。但是CDMA通信系统本身所固有的“远近效应”问题严重限制了系统容量的进一步提高。本文重点论述国内外关于多用户检测技术的研究动态 ,并对几种典型的多用户检测技术进行性能评价。CDMA communication system is superior to other multiple_access methods because of greater capability, higher spectrum efficiency, supporting multiple_rate communication,etc.Recently more attention has been paid to CDMA, but its inherent “near_far resistance” problem has severely restrained the improvement of system capability. This paper discussed the developing trend about multi_user detection in the world and evaluated the performance of the present multi_user detection.

关 键 词：CDMA 多用户检测 多址干扰 远近效应 移动通信 

分 类 号：TN929.533[电子电信—通信与信息系统]