Combination of Modified Clipping Technique and Selective Mapping for PAPR Reduction

Abstract

Orthogonal frequency division multiplexing (OFDM) offers high data rate and supports high data rate applications.Although OFDM has advantages over traditional communication models but it frequently suffers from PAPR. PAPR is concerned area in OFDM from two decades and vast amount of research is carried out in literature. Selective Mapping remains as effective PAPR reduction approach and in proposed method a modified clipping technique along with selective mapping is used to reduce the PAPR reduction in efficient way. Experimental shows better results over traditional state of art methods.

Peak-to-Average Power Ratio (PAPR) Reduction Method using Hybrid Codeword Shifting (CSC+CVMT) in an F-OFDM System

“…multiple signaling which it will generate signal permutation and minimum peak in envelope be selected to transmit e.g., Partial Transmit Sequence (PTS) and Selective Mapping (SLM) [15][16][17][18][19][20][21] iii. signal distortion scheme is simplest implementation and the signal is distorted before to a high-power amplifier, such commanding, clipping and filtering [22][23][24][25] iv. hybrid technique which is combination of methods in order to have optimal minimum PAPR [26][27][28][29][30][31][32] The main aim of this study is to develop a good algorithm that is required in order to address high PAPR problem with the consideration of signal data rate loss issues.…”

“…signal distortion scheme is simplest implementation and the signal is distorted before to a high-power amplifier, such commanding, clipping and filtering [22][23][24][25] iv. hybrid technique which is combination of methods in order to have optimal minimum PAPR [26][27][28][29][30][31][32] The main aim of this study is to develop a good algorithm that is required in order to address high PAPR problem with the consideration of signal data rate loss issues. With this aim in mind, this paper presents a new technique to deal with PAPR reduction called as hybrid to Cluster Scrambling Codeword Shifting method.…”