Blind estimation of symbol timing and carrier frequency offset in pulse shaping OFDM systems

Author

Bölcskei, Helmut

Author_Institution

Inst. of Commun. & Radio-Frequency Eng., Vienna Univ. of Technol., Austria

Volume

5

fYear

1999

fDate

1999

Firstpage

2749

Abstract

We introduce a blind algorithm for the joint estimation of symbol timing and carrier frequency offset in pulse shaping OFDM systems. The proposed estimator exploits the cyclostationarity of the received OFDM signal and can be seen as an extension of the Gini-Giannakis estimator (see IEEE Trans. Comm., vol.46, p.400-11, 1998) for single-carrier systems. An important feature of our method is the capability to perform a carrier frequency acquisition over the entire bandwidth of the OFDM signal. Furthermore, our estimator can be applied even if no cyclic prefix is used. We provide simulation results demonstrating the performance of the new estimator

Keywords

OFDM modulation; frequency estimation; pulse shaping; timing; Gini-Giannakis estimator; OFDM signal; bandwidth; blind algorithm; blind estimation; carrier frequency acquisition; carrier frequency offset; cyclostationary signal; joint estimation; performance; pulse shaping OFDM systems; simulation results; single-carrier systems; symbol timing; Bandwidth; Filters; Frequency estimation; Frequency synchronization; Intersymbol interference; OFDM; Pulse shaping methods; Radio frequency; Time frequency analysis; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on

Conference_Location

Phoenix, AZ

ISSN

1520-6149

Print_ISBN

0-7803-5041-3

Type

conf

DOI

10.1109/ICASSP.1999.761313

Filename

761313