Title :
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
fDate :
Oct. 29 2000-Nov. 1 2000
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;
Conference_Titel :
Signals, Systems and Computers, 2000. Conference Record of the Thirty-Fourth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-6514-3
DOI :
10.1109/ACSSC.2000.910956
