Peak-to-average power ratio reduction of OFDM signals by applying low complexity SLM and clipping hybrid scheme

Abstract

This paper presents performance analysis of Peak to Average Power Ratio (PAPR) Reduction techniques in Orthogonal Frequency Division Multiplexing (OFDM) System such as Clipping, Partial Transmit Sequence (PTS), Selective Mapping (SLM) and SLM with Clipping (Hybrid Scheme).Complementary Cumulative Distribution Function (CCDF) is calculated for each technique with different number of sub carriers in order to analyze PAPR reduction performance and also compared with pure OFDM signal. According to our simulation results, SLM with clipping (Hybrid) technique has good PAPR reduction performance than other conventional methods, with less computational complexity.