An Improved Estimation of Integer Frequency Offset in OFDM Systems Using ML Method

Author

Kim, Geun Bae ; Lee, Wooju ; Jeong, Woojin ; Yoon, Dongweon ; Park, Sang Kyu

Author_Institution

Dept. of Electron. & Comput. Eng., Hanyang Univ., Seoul

Volume

2

fYear

2006

fDate

25-28 June 2006

Firstpage

1120

Lastpage

1123

Abstract

In this paper, we propose a simple maximum likelihood (ML) estimation method with one training symbol for the integral part of the carrier frequency offset between the transmitter and the receiver in orthogonal frequency division multiplexing (OFDM) systems. The carrier frequency offset is obtained by using the information of the training symbol. The performance of each estimator is compared through Monte Carlo simulation, and we show that proposed estimator performs better than the conventional one

Keywords

OFDM modulation; frequency estimation; maximum likelihood estimation; ML method; OFDM system; integer frequency offset estimation; maximum likelihood estimation; orthogonal frequency division multiplexing; receiver; training symbol; transmitter; Fast Fourier transforms; Frequency domain analysis; Frequency estimation; Maximum likelihood estimation; OFDM; Performance analysis; Quadrature amplitude modulation; Signal generators; Timing; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems Proceedings, 2006 International Conference on

Conference_Location

Guilin

Print_ISBN

0-7803-9584-0

Electronic_ISBN

0-7803-9585-9

Type

conf

DOI

10.1109/ICCCAS.2006.284844

Filename

4064085