Channel estimation for OFDM systems using superimposed training

被引：0
|
作者：
Xu, Daofeng [1 ]
Yang, Luxi [1 ]
机构：
[1] SE Univ, DSP Lab, Dept Radio Engn, Nanjing 210096, Peoples R China
来源：
2005 1st IEEE/IFIP International Conference in Central Asia on Internet (ICI) | 2005年
关键词：
OFDM; superimposed training;
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：
Superimposed training has raised lots of attentions due to its great spectral efficiency and its relatively fast channel estimation algorithms. In this paper, we present channel estimation methods for OFDM system using periodic superimposed training added in frequency domain. At the receiver, channel estimation is done both in time domain (pre-FFT) and frequency domain (post-FFT). In addition, we prove that the estimation is MMSE solution. Simulations show that those methods are effective especially when SNR is lower.
引用
收藏
页码：5 / 9
页数：5
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