<bold>Iterative Maximum Likelihood Estimation for Time and Integer Frequency Offset in OFDM Systems</bold>

被引：0

作者：

Nan, Lv Zheng ^{[1
,2
]}

Hui, Zhao Xiao ^{[1
,2
]}

机构：

[1] Jilin Univ, Lab Informat Sci, 55 Nanhu Campus, Changchun 130012, Peoples R China

[2] Lab Informatique Paris 6, F-75015 Paris, France

来源：

2006 8TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, VOLS 1-4 | 2006年

关键词：

OFDM; maximum likelihood estimation; integer frequency offset; iteration algorithm;

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：

In this paper the problem of integer frequency offset and time synchronization for orthogonal frequency division multiplexing (OFDM) systems is considered. An improved algorithm for time and integer frequency offset estimation is derived based on maximum likelihood (ML) technique and the differential information between two consecutive data symbols under the AWGN channel. In this algorithm, an iterative technique is used to obtain the estimation of time and normalized integer frequency offset when conducting global maximum of log-likelihood and calculating initial seed.

引用

页码：41 / +

页数：2

共 8 条

[1] Frequency offset estimation for OFDM in wireless communications [J].