Title :
A new approach for carrier frequency offset estimation in OFDM communication system
Author :
Dongming, Bian ; Xinying, Yi
Author_Institution :
Dept. of Commun. Eng., PLA Inf. & Technol. Univ., Zhengzhou, China
Abstract :
In this paper, we propose a new time-domain estimator for OFDM signal by using over-sample technology. The proposed estimator is able to achieve wider estimation range of carrier frequency offset with higher accuracy than cyclic prefix (CP) based estimator. And the results of computer emulation show the estimator gets over the impact of carrier frequency offset and achieves the same accuracy in different offsets.
Keywords :
OFDM modulation; frequency estimation; synchronisation; time-domain analysis; OFDM communication system; OFDM signal; carrier frequency offset estimation; cyclic prefix based estimator; estimation range; orthogonal frequency division multiplexing; over-sample technology; phase difference; time delay; time-domain estimator; AWGN; Digital video broadcasting; Emulation; Frequency estimation; Frequency synchronization; Gaussian noise; Maximum likelihood estimation; OFDM modulation; Phase shift keying; Programmable logic arrays;
Conference_Titel :
Communication Technology Proceedings, 2003. ICCT 2003. International Conference on
Print_ISBN :
7-5635-0686-1
DOI :
10.1109/ICCT.2003.1209905
