Frequency domain data-aided channel estimation for OFDM signals

被引：0
|
作者：
Irtuga, V. A. [1 ]
Sarana, D., V [1 ]
机构：
[1] SAD COM Ltd, Moscow, Russia
来源：
2014 6TH INTERNATIONAL CONGRESS ON ULTRA MODERN TELECOMMUNICATIONS AND CONTROL SYSTEMS AND WORKSHOPS (ICUMT) | 2014年
关键词：
OFDM; channel estimation; data-aided estimation; MAP; EM; Wiener filter;
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：
An iterative low-complexity channel estimation algorithm for OFDM signals in frequency domain is presented. Algorithm uses initial channel estimation based on pilot subcarriers, 1-D adaptive Wiener filtering in the time direction and Maximum a-posteriori probability (MAP) estimation that uses both pilot and weighted data subcarriers. The final step is the simplified version of an iterative Expectation-Maximization (EM) algorithm that uses only single iteration to reduce total computational complexity.
引用
收藏
页码：29 / 32
页数：4
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