数据采集与处理2012，Vol.27Issue(3)：273-278,6.
WCDMA系统中的差分最小均方误差多用户检测算法
Multiuser Detection Algorithm Based on Differential Minimum Mean Square Error Criterion in WCDMA System
摘要
Abstract
Since the existing adaptive algorithms need training bits and are unsuited for fast fading channel in wideband code division multiple access (WCDMA) systems, an adaptive multiuser algorithm based on differential minimum mean square error (DMMSE) criterion is presented. According to the typical characteristic of two-layer spreading modulation in the WCDMA system, the proposed DMMSE criterion updates the weighing coeffient of transversal filter by tracking the ratio of successive symbols. By avoiding the task of obtaining orthogonal variable spreading factor (OVSF) of other users, the proposed method can rapidly track varying fading gains. Theorital analysis and simulation results illustrate that DMMSE performs better than that of the existing algorithms in the Doppler shift channel.关键词
宽带码分多址/多用户检测/差分最小均方误差Key words
wideband code division multiple access (WCDMA)/ multiuser detection/ differential minimum mean square error分类
信息技术与安全科学引用本文复制引用
冯兴乐,李蔚,孙瑞宁,徐花艳..WCDMA系统中的差分最小均方误差多用户检测算法[J].数据采集与处理,2012,27(3):273-278,6.基金项目
中国博士后科学基金(201003662)特别资助项目 （201003662）
高等学校博士学科点专项科研基金(20090205120002)资助项目 （20090205120002）
中央高校基本科研业务费专项资金(CHD2012JC069,CHD2012TD011)资助项目. （CHD2012JC069,CHD2012TD011）
