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A Blind Frequency Offset Estimator for OFDM/OQAM Systems

Overview Like other OFDM-like systems, OFDM/OQAM systems are very sensitive to carrier frequency offset. A new blind carrier frequency estimator is introduced herein for OFDM- /OQAM systems by exploiting the non-circularity of the received signal. Since the received signal exhibits conjugate cyclic frequencies at twice the carrier frequency offset, a frequency estimator is proposed by maximizing a cost function expressed in terms of the sample conjugate cyclocor-relations. Computer simulations illustrate that the proposed estimator is very accurate whenever large observation windows are available, is robust to timing errors and frequency-selective fading effects.

Further White Paper Details
Publisher	Texas A&M University	File Format	PDF
Date Published	April 2007	Downloads	3
Format	White Papers
Topics	Wireless LAN, Mobile - Wireless Communications

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