Blind code timing estimation for DS-CDMA signals in unknown colored noise

被引：0

作者：

Ma, YG ^{[1
]}

Li, KH ^{[1
]}

Kot, AC ^{[1
]}

Ye, GT ^{[1
]}

机构：

[1] Sony Elect S Pte Ltd, Singapore Res Lab, Singapore 117684, Singapore

来源：

GLOBECOM '00: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1- 3 | 2000年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In recent years, the MUSIC timing estimator were proposed for direct-sequence code-division multiple access (DS-CDMA) signals. It has been generally assumed that the channel noise is temporally white. However it may be invalid in practice due to, for instance, the presence of some narrowband interference or the lumping of secondary users into with the noise. In this paper, we consider blind code timing in unknown colored noise by using the matrix decomposition technique, A subspace-based code timing estimation algorithm is presented and its performance is evaluated by computer simulation and compared with the MUSIC method. It is proved that the proposed timing estimation algorithm provides better performance than the MUSIC method in colored noise.

引用

页码：113 / 117

页数：5