Two coarse frequency acquisition algorithms for OFDM based IEEE 802.11 standards

Author

Arrue, Naiara ; Vélez, Igone ; Sevillano, Juan F. ; Fontán, Luís

Author_Institution

Dept. of Electron. & Commun., CEIT, San Sebastian

Volume

53

Issue

1

fYear

2007

fDate

2/1/2007 12:00:00 AM

Firstpage

33

Lastpage

38

Abstract

A novel coarse carrier frequency estimation approach is proposed for the IEEE 802.11 OFDM family. This approach employs the properties of the preamble to reduce the carrier acquisition problem to single tone frequency estimation. Two low cost algorithms are proposed. Their main features and implementation details are analyzed. The first algorithm presents good performance in moderate and high SNR multipath environments. The second algorithm is very robust in low SNR multipath scenarios. Extensive simulation results are presented.

Keywords

IEEE standards; OFDM modulation; frequency estimation; multipath channels; wireless LAN; IEEE 802.11 standards; OFDM; SNR multipath environments; coarse carrier frequency estimation; orthogonal frequency division multiplexing; signal-to-noise ratio; single tone frequency estimation; two coarse frequency acquisition algorithms; Consumer electronics; Degradation; Frequency estimation; Frequency synchronization; IEEE 802.11 Standards; Maximum likelihood estimation; OFDM; Robustness; Timing; Wireless LAN;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2007.339498

Filename

4140895