Frame synchronization in the presence of frequency offset

Author

Choi, Zae Yong ; Lee, Yong H.

Author_Institution

Div. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejon, South Korea

Volume

50

Issue

7

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

1062

Lastpage

1065

Abstract

A new frame synchronization technique, which is robust to carrier frequency and phase errors, is proposed for M-ary PSK systems. This technique is derived through modification of the procedure used for obtaining the maximum-likelihood (ML) rule in the paper by Gansman et al. (1997). The proposed rule is based on an operation called a double correlation which evaluates a correlation after properly multiplying the received signal with a sync pattern. It was shown through computer simulation that the proposed rule generally outperformed the existing rules when a frequency offset existed.

Keywords

AWGN channels; correlation methods; maximum likelihood estimation; phase shift keying; synchronisation; AWGN channels; M-ary PSK systems; carrier frequency errors; carrier phase errors; computer simulation; double correlation; frame synchronization; frequency offset; maximum-likelihood rule; received signal; sync pattern; AWGN; Computer simulation; Frequency estimation; Frequency synchronization; Maximum likelihood detection; Maximum likelihood estimation; Phase estimation; Phase shift keying; Robustness; Timing;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2002.800815

Filename

1021037