Reduced-rank interference suppression for DS-CDMA based on interpolated FIR filters

被引：8
|
作者：
de Lamare, RC [1 ]
Sampaio-Neto, R [1 ]
机构：
[1] Pontificia Univ Catolica Rio de Janeiro, CETUC, BR-22453900 Rio de Janeiro, Brazil
来源：
IEEE COMMUNICATIONS LETTERS | 2005年 / 9卷 / 03期
关键词：
interference suppression; multiuser detection; DS-CDMA; interpolated filters; reduced-rank receivers;
D O I：
10.1109/LCOMM.2005.03010
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Reduced-rank receivers based on interpolated finite impulse response (FIR) filters for direct sequence code division multiple access (DS-CDMA) systems are proposed and a novel scheme where the interpolator is rendered time-varying is introduced. The interpolated minimum mean squared error (MMSE) and constrained minimum variance (CMV) solutions are derived for both receiver and interpolator to mitigate multiple access interference (MAI) and intersymbol interference (ISI) in a downlink scenario.
引用
收藏
页码：213 / 215
页数：3
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