Time domain channel estimation for the uplink of multicarrier DS-CDMA systems

被引：0
|
作者：
Ye, GT [1 ]
Bi, GA [1 ]
Fang, LQ [1 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 2263, Singapore
来源：
CONFERENCE RECORD OF THE THIRTY-SECOND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, VOLS 1 AND 2 | 1998年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we propose a time domain maximum likelihood channel estimator for the uplink of multicarrier DS-CDMA communication systems in the presence of slowly varying frequency-selective fading. The Expectation Maximization algorithm is developed for estimating the carrier phases, amplitudes and propagation delays of the uplink channel based on training sequence which is transmitted with the subcarriers used for data transmission. The performance of the resulting estimator is evaluated via simulation. The results indicate that the estimator a's well suited for coherent data detection at the receiver associated with maximal ratio combining.
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收藏
页码：1878 / 1881
页数：4
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