Subspace based OFDM carrier offset estimation algorithm in model mismatch

Author

Tureli, Ufuk ; Kivanc, Didem ; Liu, Hui

Author_Institution

Dept. of Electr. & Comput. Sci., Stevens Inst. of Technol., Hoboken, NJ, USA

Volume

1

fYear

2000

fDate

Oct. 29 2000-Nov. 1 2000

Firstpage

264

Abstract

We develop a blind subspace based carrier offset estimator for orthogonal frequency division multiplexing (OFDM) on channels with support exceeding the cyclic prefix length. the algorithm is particularly suited for uplink synchronization where the combination of asynchronism, propagation delays and multipath effects may result in channel support longer than the cyclic prefix. Simulation results demonstrate the robustness of the carrier offset estimation algorithm in a practical OFDM system.

Keywords

OFDM modulation; delays; land mobile radio; multipath channels; multiuser channels; parameter estimation; radio links; synchronisation; asynchronism; blind subspace based carrier offset estimator; carrier offset estimation algorithm; channel support; cyclic prefix length; model mismatch; multipath effects; orthogonal frequency division multiplexing; propagation delays; simulation results; subspace based OFDM; uplink synchronization; Data communication; Discrete Fourier transforms; Frequency estimation; Frequency synchronization; Integrated circuit noise; OFDM; Propagation delay; Robustness; Scalability; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2000. Conference Record of the Thirty-Fourth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-6514-3

Type

conf

DOI

10.1109/ACSSC.2000.910956

Filename

910956