Frequency synchronization method for systems with orthogonal frequency division multiplexing operating in a channel with AWGN and Rayleigh fading

The article discusses the problem of the correct synchronization in case of using the orthogonal frequency division multiplexing under the inter-symbol and inter-channel interference caused by a signal passage through the multipath propagation channel. The result of analyzing the existing algorithms is given and a new method of frequency synchronization for systems with orthogonal frequency division multiplexing is proposed. In the simulation we use AWGN and Rayleigh multipath channel. The results are characterized by the mean squared errors. The proposed method for estimating the frequency shift shows a less mean squared error under the same SNR, which indicates more efficiency in comparison with the previous methods.

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