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 JSIP  Vol.4 No.3 B , August 2013
Frequency Synchronization in OFDM System
Abstract: An accurate frequency synchronization method using the zadoff-chu (ZC) constant envelop preamble is analyzed, and a new preamble weighted by pseudo-noise sequence is used for orthogonal frequency division multiplexing (OFDM) systems. Using this method, frequency offset estimator range is greatly enlarged with no loss in accuracy. The range of the frequency estimation is ±30 of subcarrier spacing using ZC sequence as preamble. Simulations in the MATLAB for an AWGN channel show that the proposed method achieves superior performance to existing techniques in terms of frequency accuracy and range.
Cite this paper: C. Priya and A. Vasumathi, "Frequency Synchronization in OFDM System," Journal of Signal and Information Processing, Vol. 4 No. 3, 2013, pp. 138-143. doi: 10.4236/jsip.2013.43B024.
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