Therefor it is becoming the focus technology of wireless communication.The fucus of the research of OFDM is easily to be affected by frequency offset and the high Peak to Average Power Ratio(PAPR).

• OFDM系统的研究的重点是易受频率偏差的影响和存在较高的峰值平均功率比 (PAPR)问题，这使得OFDM通信系统的性能大大下降甚至直接影响实际应用。