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Exploiting hidden pilots for carrier frequency offset estimation for generalized MC-CDMA systems

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2 Author(s)
Yi Ma ; Center for Commun. Syst. Res., Surrey Univ., Guildford ; Tafazolli, R.

This paper proposes a novel carrier frequency offset (CFO) estimation method for generalized MC-CDMA systems in unknown frequency-selective channels utilizing hidden pilots. It is established that CFO is identifiable in the frequency-domain by employing cyclic statistics (CS) and linear regression (LR) algorithms. We show that the CS-based estimator is capable of mitigating the normalized CFO (NCFO) to a small error value. Then, the LR-based estimator can be employed to offer more accurate estimation by removing the residual quantization error after the CS-based estimator

Published in:

Statistical Signal Processing, 2005 IEEE/SP 13th Workshop on

Date of Conference:

17-20 July 2005