Patent ID: 8184725
Filing Date: 2012-05-22
Classification: H04L

Abstract:
1. A receiver of an orthogonal frequency division multiplexing (OFDM) scheme, the receiver comprising: an autocorrelation processor to calculate and accumulate an autocorrelation value with regard to samples of an OFDM symbol before an initialized starting point; and a reference value calculator to calculate reference values of indexes of each sample in at least one predetermined sample section based on the accumulated autocorrelation values, the at least one predetermined sample section established using at least one sliding window and corresponding to a size of the at least one sliding window; wherein the reference values correspond to the result of dividing an imaginary number unit of the accumulated autocorrelation values by a real number unit of the accumulated autocorrelation values and are used to repeatedly reestablish the initialized starting point and to determine a final starting point.