Patent ID: 8059736

Claim:
An orthogonal frequency division multiplexing (OFDM) receiver, comprising: an offset compensator configured to receive a digital input signal and a sampling offset, and to convert the digital input signal into a baseband signal in accordance with the sampling offset; a fast Fourier transform (FFT) block configured to perform an FFT operation of the base band signal output from the offset compensator and to output a corresponding FFT result; a control unit configured to generate OFDM symbol information and a plurality of control signals based on the FFT result; a channel impulse response estimation block configured to periodically generate receiving channel impulse response information of a receiving channel based on the FFT result; and a sampling offset estimation block configured to generate the sampling offset based on the FFT result, the receiving channel impulse response information, the OFDM symbol information, and the plurality of control signals.