Author : Priyanka and Balinder Singh

Orthogonal Frequency Division Multiplexing (OFDM) uses multicarrier modulation technique that transfer data at high rate. OFDM has various main advantages like lower Inter symbol Interference (ISI), High spectral efficiency, High Power Efficiency, more immune to multipath fading, efficient usage of bandwidth. Due to these advantages it is suitable to be used in 4G and 4.5G communications. Along with these advantages, high PAPR in OFDM system leads a major consideration as it greatly affects the system performance. In this paper, we are going to have an overview on various PAPR reduction techniques.

Keywords: OFDM, PAPR, SLM, PTS, TR, TI, PRC, ES.