Low-complexity pilot-aided compensation for carrier frequency offset and I/Q imbalance

Authors:
Hai Lin;Xu Zhu;Katsumi Yamashita
Affiliations:
Department of Electrical and Information Systems, Osaka Prefecture University, Osaka, Japan;Department of Electrical Engineering and Electronics, the University of Liverpool, Liverpool, UK;Department of Electrical and Information Systems, Osaka Prefecture University, Osaka, Japan
Venue:
IEEE Transactions on Communications
Year:
2010

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Abstract

We propose a novel pilot-aided compensation scheme for carrier frequency offset (CFO) and I/Q imbalance. The proposed scheme comprises a generalized periodic pilot and a low-complexity acquisition algorithm, where the CFO and the coefficients for I/Q imbalance compensation can be obtained in explicit closed-form.