SSP'05 -- Proceedings

	IEEE/SP 13th workshop on Statistical Signal Processing July, 17-20, 2005 - Bordeaux - France

Information regarding the paper

Title

Exploiting Hidden Pilots for Carrier Frequency Offset Estimation for Generalized MC-CDMA Systems

Author(s)

Yi Ma	The University of Surrey
Rahim Tafazolli	The University of Surrey

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Abstract

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.