Channel Estimation for OFDM System with Regularized Total Least-Squares Solution

被引：0

作者：

Fan, Tongliang ^{[1
]}

Fu, Lianqing ^{[1
]}

机构：

[1] Chongqing Univ, Coll Commun Engn, Chongqing 400044, Peoples R China

来源：

MATERIALS, MECHATRONICS AND AUTOMATION, PTS 1-3 | 2011年 / 467-469卷

关键词：

OFDM; Channel Estimation; Regularized Total Least-squares; ICI; MIMO-OFDM; SIGNAL-DETECTION; FADING CHANNELS;

D O I：

10.4028/www.scientific.net/KEM.467-469.1621

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Orthogonal frequency-division multiplexing (OFDM) combines the advantages of high performance and relatively low implementation complexity. However, for reliable coherent detection of the input signal, the OFDM receiver needs accurate channel information. The Doppler shift of fast-fading channels will generate inter-carrier interference (ICI) and, hence, degrade the performance of orthogonal frequency-division multiplexing (OFDM) systems. In this paper, we present regularized total least-squares (RTLS) scheme to eliminate the ICI and noise. A closed-form mathematical expression has been derived to express the channel estimation. It has been shown that the proposed channel estimation and data detect can effectively eliminate the ICI effect.

引用

页码：1621 / 1626

页数：6

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