A novel time and frequency synchronization scheme for OFDM systems

Author

Yi, Guo ; Gang, Liu ; Jianhua, Ge

Author_Institution

Nat. Key Lab. of Integrated Service, Xidian Univ., Xi´´an

Volume

54

Issue

2

fYear

2008

fDate

5/1/2008 12:00:00 AM

Firstpage

321

Lastpage

325

Abstract

A new training symbol is designed and a novel time and frequency synchronization scheme for orthogonal frequency division multiplexing systems is proposed. The time synchronization is accomplished by using the symmetric conjugate of the training symbol in time domain and the frequency synchronization is finished by utilizing the good autocorrelation of the training symbol in frequency domain. The simulation results show that compared with conventional schemes, the proposed scheme gives a more accurate estimate of symbol timing and carrier frequency offset and provides a wider acquisition range for the carrier frequency offset.

Keywords

OFDM modulation; frequency estimation; synchronisation; timing; OFDM systems; carrier frequency offset; frequency synchronization scheme; orthogonal frequency division multiplexing systems; symbol timing offset; time synchronization scheme; training symbol; AWGN; Autocorrelation; Frequency domain analysis; Frequency estimation; Frequency synchronization; Intserv networks; Laboratories; OFDM; Timing; Uncertainty;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2008.4560093

Filename

4560093