Title :
SPC08-4: Blind Carrier Frequency Offset Estimation for OFDM/OQAM Systems Based on Subchannel Signals
Author :
Lin, Gang ; Lundheim, Lars ; Holte, Nils
Author_Institution :
Dept. of Electron. & Telecommun., Norwegian Univ. of Sci. & Technol., Trondheim
fDate :
Nov. 27 2006-Dec. 1 2006
Abstract :
New blind carrier frequency offset (CFO) estimation methods based on the correlation function of the subchannel signals are presented for OFDM/OQAM systems. The proposed estimators are robust to multipath effects due to the narrowband property of the subchannels in OFDM systems. The performance of the estimators is evaluated by asymptotic analysis and simulation results. Our results show that methods based on estimation in subchannels have better performance than method based on the signal before demodulation.
Keywords :
OFDM modulation; channel estimation; correlation methods; demodulation; OFDM system; OQAM systems; asymptotic analysis; blind carrier frequency offset estimation; correlation function; demodulation; multipath effects; subchannel signals; Analytical models; Demodulation; Frequency estimation; Interference; Multipath channels; Narrowband; OFDM; Performance analysis; Quadrature amplitude modulation; Robustness;
Conference_Titel :
Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0356-1
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2006.577
