Transmission system with interference avoidance capability and method thereof

A transmission system with interference avoidance capability, comprising:

• a transmission apparatus, comprising:
• a first inverse fast Fourier transform unit, receiving input data and transforming the input data to first data;
• an interference-processing module, receiving the first data and adding a plurality of extension data to the first data to produce second data for replacing a plurality of data corresponding to an interfered band in the second data with zero data, and producing transmission data;
• a transmission-processing module, converting the transmission data to a radio-frequency signal, and transmitting the radio-frequency signal;
• a receiving apparatus, comprising:
• a receiving-processing module, receiving the radio-frequency signal, and converting the radio-frequency signal to received data;
• a removal unit, removing the plurality extension data of the received data, and producing recovered data;
• and
• a first fast Fourier transform unit, transforming the recovered data for producing output data.