Blind Estimation of Large Carrier Frequency Offset in Wireless OFDM Systems

Author

Al-Dweik, A. ; Hamila, R. ; Renfors, Markku

Author_Institution

Emirates Telecom Corp., Etisalat Univ. Coll., Sharjah

Volume

56

Issue

2

fYear

2007

fDate

3/1/2007 12:00:00 AM

Firstpage

965

Lastpage

968

Abstract

In this paper, a highly efficient blind band-edge filter-based technique is introduced for the estimation of carrier frequency offsets that are much larger than the subcarrier spacing in orthogonal-frequency-division-multiplexing (OFDM) systems. The proposed scheme is shown to have a high accuracy and an acquisition range that is much larger than the subcarrier spacing limitation inherent to other synchronization techniques. The performance of the proposed system as well as other well-referred techniques is assessed over additive white Gaussian noise and frequency-selective fading channels using different pulse shaping filters

Keywords

AWGN channels; OFDM modulation; fading channels; filtering theory; synchronisation; additive white Gaussian noise; blind band-edge filter-based technique; blind estimation; frequency-selective fading channels; large carrier frequency offset; pulse shaping filters; subcarrier spacing limitation; synchronization techniques; wireless OFDM systems; Additive white noise; Bandwidth; Filters; Frequency estimation; Frequency synchronization; Frequency-selective fading channels; OFDM; Pulse shaping methods; Senior members; Variable structure systems; Band-edge filters (BEFs); blind estimation; carrier frequency offset (CFO); orthogonal frequency division multiplexing (OFDM);

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2007.891430

Filename

4138001