A novel frequency offset estimation for OFDM systems

Jong Yoon Hwang, Kwang Soon Kim, Keum Chan Whang

Research output: Contribution to journalArticle

Abstract

In this letter, a blind frequency offset estimation algorithm is proposed for OFDM systems. The proposed method exploits the intrinsic phase shift between neighboring samples in a single OFDM symbol, incurred by a frequency offset. The proposed algorithm minimizes a novel cost function, which is the squared error of the candidate frequency offset compensated signals from two different observation windows. Also, the solution of the proposed algorithm is given by an explicit equation, which does not require any iterative calculation. It is shown that the performance of the proposed method is better than those of the conventional methods, especially in the presence of multipath channels. This is due to the fact that the proposed method is insensitive to inter-symbol interference (ISI).

Original languageEnglish
Pages (from-to)3132-3135
Number of pages4
JournalIEICE Transactions on Communications
VolumeE89-B
Issue number11
DOIs
Publication statusPublished - 2006 Nov

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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