MC-CDMA Blind Frequency-Offset Estimation: Projection Approaches

Ann-Chen CHANG  Chiao-Chan HUANG  Zhi-Feng HUANG  

IEICE TRANSACTIONS on Communications   Vol.E87-B   No.3   pp.772-775
Publication Date: 2004/03/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Terrestrial Radio Communications
MC-CDMA,  carrier frequency offset,  maximum likelihood,  inter carrier interference,  virtual carriers,  

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Two simple frequency offset estimators based on projection approaches for multicarrier code-division multiple access systems are proposed, without using specific training sequences. It is not only can estimate and correct frequency offset, but also has less computational load. Several computer simulations are provided for illustrating the effectiveness of the blind estimate approaches.