A PAPR Reduction Anaysis of Various Techniques in OFDM System

Communication is one of the important aspects of life. With the increasing demand of transpiring voice, data communication and video over the internet in the developing 4G wireless communication system that experienced a fast growth due to high mobility they allow. The advancement in signal processing and very large scale integrated circuit make it an efficient implementation of FFT operations so that OFDM gives a luring solution for wireless channels. As we all know OFDM is a multicarrier communication technique that is used both in wired and wireless communication. One of the major problem occurred in OFDM is peak to average power ratio (PAPR). In order to minimize the PAPR problem of OFDM signal with distortion and distortion less techniques in communication system. This gives a clear understanding of different techniques to reduce PAPR and BER of the signal. The analysis of the performance of some commonly used techniques and proposed an improved technique from one of those techniques.