• Hemant Rathaur
• Prof. Madhav Singh

PAPR reduction is the main problem in OFDM technique. When multiple subcarriers are multiplexed in OFDM, sometimes the instantaneous power exceeds certain threshold limit that distorts the output because the output is out of the linear range of power amplifier. PAPR can be successfully reduced by using PTS (Partial Transmit Sequence) technique. Therefore in our proposed work, we modified PTS method by placing multiple set of phase factor. Two different set of phase factors has been taken which are multiplied by OFDM signal and results in low PAPR output signal. Simulation result of this paper shows better PAPR reduction than original PTS technique as shown in the results. The work is done in Matlab software.

CCDF (Complementary Cumulative Distribution Function), IFFT (Inverse Fast Fourier Transform), OFDM (Orthogonal Frequency division Multiplexing), PAPR (Peak-to-Average Power Ratio), PTS (Partial Transmit Sequence).

" Two Set Phase Factor Optimization of PTS Technique for PAPR Reduction in OFDM System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 10, page no.224-230, October-2018, Available :http://www.jetir.org/papers/JETIR1810814.pdf

" Two Set Phase Factor Optimization of PTS Technique for PAPR Reduction in OFDM System", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 10, page no. pp224-230, October-2018, Available at : http://www.jetir.org/papers/JETIR1810814.pdf