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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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.
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|Divisions:||Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research|
|Deposited By:||Melanie Hughes|
|Deposited On:||16 Sep 2010 10:16|
|Last Modified:||24 Jan 2013 09:08|
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