A New OFDM Synchronization Symbol for Carrier Frequency Offset Estimation

Author

Laourine, Amine ; Stéphenne, Alex ; Affes, Sofiène

Author_Institution

INRS-EMT, Montreal, Que.

Volume

14

Issue

5

fYear

2007

fDate

5/1/2007 12:00:00 AM

Firstpage

321

Lastpage

324

Abstract

This letter proposes a new data-aided carrier frequency offset (CFO) estimation scheme for orthogonal frequency division multiplexing (OFDM) communications suitable for frequency-selective channels. The proposed method is based on the transmission of a specially designed synchronization symbol that generates a particular signal structure between the received observation samples at the receiver. This structure is exploited to derive a closed-form expression of the CFO. The proposed solution offers a wide acquisition range with reduced computational load. Simulations over frequency-selective channels confirm the superiority of the proposed method compared to recent data-aided synchronization algorithms

Keywords

OFDM modulation; frequency estimation; synchronisation; telecommunication channels; OFDM synchronization symbol; carrier frequency offset; closed-form expression; data-aided CFO estimation; frequency-selective channel; orthogonal frequency division multiplexing communication; Closed-form solution; Computational modeling; Frequency division multiplexing; Frequency estimation; Frequency synchronization; OFDM; Phase estimation; Robustness; Signal design; Signal generators; Frequency-division multiplexing; synchronization;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2006.888353

Filename

4154730