Improvement of the Decision-Directed Frequency Tracking Algorithm for OFDM Systems

被引：0

作者：

Zheng, Laibo ^{[1
]}

Cao, Yewen ^{[1
]}

机构：

[1] Shandong Univ, Informat Sci & Engn Sch, Jinan 250100, Peoples R China

来源：

2009 WRI INTERNATIONAL CONFERENCE ON COMMUNICATIONS AND MOBILE COMPUTING: CMC 2009, VOL I | 2009年

关键词：

OFFSET;

D O I：

10.1109/CMC.2009.175

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we first analyze a kind of decision-directed frequency tracking algorithm for OFDM systems, and the approximation in derivation of the estimation result, and then we propose an iterative algorithm. In most cases, the frequency offset can be estimated and compensated within one OFDM symbol by using the iterative algorithm. This results in a shortened convergence time. The Cramer-Rao Low Band for the algorithm is derived too, and the simulation results show that the estimation results are close to the Cramer-Rao Low Band.

引用

页码：293 / 297

页数：5

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