• Maninder Singh
• Vikas Kumar

Orthogonal Frequency Division Multiplexing (OFDM) is an attractive and promising technique for fourth generation wireless communication. In the OFDM system, orthogonally placed sub-carriers are used to carry the data from the transmitter end to the receiver end. Presence of guard band in this system deals with the problem of ISI and noise is minimized by larger number of sub-carriers. But the large Peak to Average Power Ratio of these signal have some undesirable effects on the system. High Peak to Average Power Ratio (PAPR) is the one of the major drawback of the Orthogonal Frequency Division Multiplexing (OFDM) transmitted signal. In this dissertation, some of the existing PAPR reduction techniques have been analyzed. The simulation results for the PAPR techniques are compared with some of the existing techniques like, Partial Transmit Sequences (PTS), Selective Mapping (SLM), Iterative flipping and new SLM. Although all the existing techniques can reduce the Peak to Average Power Ratio (PAPR), the computer simulation results is compared for various parameters. The results also show that the PAPR reduction techniques performs better when the numbers of subblocks in the OFDM transmitted signal increases.

OFDM, PAPR,CCDF, PTS, Iterative Flipping, SLM, HPA,SNR, BER.

"STUDY AND COMPARITIVE ANALYSIS OF PTS, ITERATIVE FLIPPING AND SLM SCHEME FOR PAPR REDUCTION IN OFDM NETWORKS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 6, page no.756-768, June-2020, Available :http://www.jetir.org/papers/JETIR2006444.pdf

"STUDY AND COMPARITIVE ANALYSIS OF PTS, ITERATIVE FLIPPING AND SLM SCHEME FOR PAPR REDUCTION IN OFDM NETWORKS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 6, page no. pp756-768, June-2020, Available at : http://www.jetir.org/papers/JETIR2006444.pdf