Iterative LS Channel Estimation for OFDM Systems Based on Transform-domain Processing

被引：8
|
作者：
Wei, Su [1 ]
Zhiwen, Pan [1 ]
机构：
[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China
来源：
2007 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-15 | 2007年
关键词：
D O I：
10.1109/WICOM.2007.110
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Channel estimation is crucial for the performance of OFDM systems. In this paper, at rst we describe the LS channel estimator based on transform domain processing and an iterative algorithm to improve the performance of channel estimator. Both of them could remove the additive Gaussian noise in the LS channel estimate effectively. Then we initially apply this iterative algorithm to the introduced transform-domain based LS channel estimator. We also introduce a decision-directed process to the channel estimator to further improve the estimation accuracy. Simulation results show that the new estimator performs better than the former ones.
引用
收藏
页码：416 / 419
页数：4
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