Reducing PAPR with Novel Precoding Method in OFDM System

Peak-to-average Power Ratio(PAPR) is considered as one of the serious side-effect of the OFDM system, which affects the efficiency of the amplifier. In this paper, we proposed a pre-coding scheme using a new encoding method of zerolization, which is based on the Information Gene(IG). The proposed technique is a new model of encoding that results as transforming no more than twelve zero and processing information which are all in low PAPR according to the principle of coding method proposed in the book of OFDM[2]. The obtained results show that this pre-coding method is not only reducing the PAPR with low complexity, also has well performance in Bit Error Rate(BER) since it has no effect on the magnitude. We hope that it will bring forth or open up the area of coding method in the PAPR reduction.