Patent ID: 8428199

Claim:
A receiver for performing frequency domain equalization, the receiver comprising: a signal receiving unit which receives a signal transmitted from a transmitter via a channel; a first discrete Fourier transformer (DFT) which transforms the received signal into a first frequency domain signal, the first frequency domain signal including frequency spectrums of data and pilots; a channel estimator which ascertains positions of the pilots with respect to positions of the frequency spectrums of the data using a channel frequency response being calculated based on the pilots, and estimates a frequency response of the channel based on the ascertained positions of the pilots; and a frequency domain equalizer which performs equalization with respect to the first frequency domain signal based on the estimated frequency response of the channel, wherein the channel estimator analyzes, in a time domain, a channel frequency response being calculated based on the data and the channel frequency response being calculated based on the pilots to ascertain the positions of the pilots.