An improved frequency offset estimator for OFDM applications

被引：370

作者：

Morelli, M ^{[1
]}

Mengali, U ^{[1
]}

机构：

[1] Univ Pisa, Dept Informat Engn, I-56100 Pisa, Italy

来源：

IEEE COMMUNICATIONS LETTERS | 1999年 / 3卷 / 03期

关键词：

frequency offset; OFDM;

D O I：

10.1109/4234.752907

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

An effecient algorithm has been proposed by Schmidl and Cox for carrier frequency estimation in orthogonal frequency-division multiplexing systems. The scheme is based on the transmission of a training symbol composed of two identical halves in the time domain. In this paper we extend this algorithm by considering a training symbol composed of L>2 identical parts, This makes it possible to achieve re better accuracy at the cost of some increase in computational load. The estimation range can be made as large as desired without the need of a second training symbol, as required by the Schmidl and Cox method.

引用

页码：75 / 77

页数：3

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