IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Online ISSN : 1745-1337
Print ISSN : 0916-8508
Special Section on Intelligent Transport Systems and Wideband Systems
Blind Carrier Frequency Offset Estimation in Weighted Fractional Fourier Transform Communication Systems
Toshifumi KOJIMAKouji OHUCHI
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2023 Volume E106.A Issue 5 Pages 807-811

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Abstract

In this study, a blind carrier frequency offset (CFO) estimation method is proposed using the time-frequency symmetry of the transmitted signals of a weighted Fourier transform (WFrFT) communication system. Blind CFO estimation is achieved by focusing on the property that results in matching the signal waveforms before and after the Fourier transform when the WFrFT parameter is set to a certain value. Numerical simulations confirm that the proposed method is more resistant to Rayleigh fading than the conventional estimation methods.

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© 2023 The Institute of Electronics, Information and Communication Engineers
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