Method and apparatus for transmitting/receiving a signal in an FFH-OFDM communication system

A method for signal transmission by signal transmitter in a communication system, the method comprising the steps of:

• performing M-point Fast Fourier Transform (FFT) on input data;
• and
• performing N-point Inverse Fast Fourier Transform (IFFT) on the M-point FFTed data;
• wherein frequency hopping is performed for the M-point FFTed data and the M-point FFTed data are mapped to consecutive input points of the IFFT;
• wherein the consecutive input points are determined by the frequency hopping.

An apparatus for signal reception in a communication system, the apparatus comprising:

• a first Fast Fourier Transform (FFT) unit for performing N-point FFT on input data;
• and
• an Inverse Fast Fourier Transform (IFFT) unit for performing M-point IFFT on the N-point FFTed data;
• wherein frequency hopping is performed for the N-point FFTed data inputted to the IFFT unit and the N-point FFTed data are mapped to consecutive input points;
• wherein the consecutive input points are determined by the frequency hopping.

A method for signal reception by signal receiver in a communication system, the method comprising the steps of:

• performing N-point Fast Fourier Transform (FFT) on input data;
• and
• performing M-point Inverse Fast Fourier Transform (IFFT) on the N-point FFTed data;
• wherein frequency hopping is performed for the N-point FFTed data inputted to the IFFT unit and the N-point FFTed data are mapped to consecutive input points of the IFFT;
• wherein the consecutive input points are determined by the frequency hopping.