Novel technique to reduce PAPR in OFDM systems by clipping and filtering

This paper focused on Peak to Average Power Reduction Scheme for OFDM system, as Orthogonal Frequency Division Multiplexing (OFDM) is known as one of the promising modulation and multiplexing technique for the transmission of high data rate in wireless communication systems. The main drawback of OFDM is high PAPR; because of this transmitter should have high linear range devices for signal amplification to transmit and to receive these high peaks without clipping the signal, we need to design A/D and D/A devices with high demands on dynamic range and precision, otherwise the OFDM signals conflict non-linear distortion, which results in out-of-band emissions, co-channel interference and significant degradation of system's performance. In this paper we have discussed about simple technique to reduce the high PAPR of OFDM signal by clipping and filtering method.