SPC08-4: Blind Carrier Frequency Offset Estimation for OFDM/OQAM Systems Based on Subchannel Signals

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.

[1]  Anders Vahlin,et al.  Optimal finite duration pulses for OFDM , 1996, IEEE Trans. Commun..

[2]  Marc Moeneclaey,et al.  BER sensitivity of OFDM systems to carrier frequency offset and Wiener phase noise , 1995, IEEE Trans. Commun..

[3]  Daesik Hong,et al.  A blind OFDM synchronization algorithm based on cyclic correlation , 2004, IEEE Signal Process. Lett..

[4]  Philippe Loubaton,et al.  Performance analysis of blind carrier frequency offset estimators for noncircular transmissions through frequency-selective channels , 2002, IEEE Trans. Signal Process..

[5]  D. Brillinger.  Time series - data analysis and theory , 1981, Classics in applied mathematics.

[6]  Nicola Laurenti,et al.  Efficient implementations and alternative architectures for OFDM-OQAM systems , 2001, IEEE Trans. Commun..

[7]  P. K. Remvik,et al.  Fading and carrier frequency offset robustness for different pulse shaping filters in OFDM , 1998, VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151).

[8]  Helmut Bölcskei,et al.  Design of pulse shaping OFDM/OQAM systems for high data-rate transmission over wireless channels , 1999, 1999 IEEE International Conference on Communications (Cat. No. 99CH36311).

[9]  Gang Lin,et al.  New Methods for Blind Fine Estimation of Carrier Frequency Offset in OFDM/OQAM Systems , 2006, 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications.

[10]  Erchin Serpedin,et al.  A fine blind frequency offset estimator for OFDM/OQAM systems , 2004, IEEE Transactions on Signal Processing.

[11]  Helmut Bölcskei,et al.  Blind estimation of symbol timing and carrier frequency offset in wireless OFDM systems , 2001, IEEE Trans. Commun..

[12]  Philippe Loubaton,et al.  Performance analysis of a class of nondata-aided frequency offset and symbol timing estimators for flat-fading channels , 2002, IEEE Trans. Signal Process..

[13]  Gang Lin,et al.  Design of robust pulses to carrier frequency offset for OFDM/OQAM system , 2005, GLOBECOM '05. IEEE Global Telecommunications Conference, 2005..