A Unitary ESPRIT algorithm for carrier frequency offset estimation

Author

Ferreira, Tadeu N. ; Netto, Sergio L. ; Diniz, Paulo S R

Author_Institution

Telecommun. Dept., Fed. Fluminense Univ. (UFF), Niteroi, Brazil

fYear

2011

fDate

15-18 May 2011

Firstpage

629

Lastpage

632

Abstract

This article presents a low-complexity parametric algorithm for the estimation of the carrier frequency offset (CFO) in orthogonal frequency division multiplexing systems. The proposed algorithm is equivalent to the Unitary ESPRIT algorithm, originally devised for estimating the direction-of-arrival of a wave front, now applied to the CFO scenario. It is verified that the proposed algorithm reduces the overall computational complexity in around 40%, while sustaining the error-rate performance achieved by the standard ESPRIT algorithm.

Keywords

OFDM modulation; computational complexity; direction-of-arrival estimation; carrier frequency offset estimation; computational complexity; direction-of-arrival estimation; low-complexity parametric algorithm; orthogonal frequency division multiplexing systems; unitary ESPRIT algorithm; Computational complexity; Direction of arrival estimation; Discrete Fourier transforms; Estimation; OFDM; Signal processing algorithms; Array signal processing; Direction of arrival estimation; Parameter estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2011 IEEE International Symposium on

Conference_Location

Rio de Janeiro

ISSN

0271-4302

Print_ISBN

978-1-4244-9473-6

Electronic_ISBN

0271-4302

Type

conf

DOI

10.1109/ISCAS.2011.5937644

Filename

5937644