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

Ma, Yi and Tafazolli, Rahim (2005) Estimation of Carrier Frequency Offset for Generalized MC-CDMA Systems by Exploiting Hidden Pilots IEEE Signal Processing Letters, 12 (11). pp. 753-756. ISSN 1070-9908

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Abstract

This letter proposes a novel carrier frequency offset (CFO) estimation method for generalized multicarrier code-division multiple access 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. Simulation results are presented together with the theoretical analysis, and a good match between them is observed.

Item Type: Article
Additional Information: ©2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Depositing User: Melanie Hughes
Date Deposited: 16 Sep 2010 09:16
Last Modified: 23 Sep 2013 18:36
URI: http://epubs.surrey.ac.uk/id/eprint/2069

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