PARTIAL TRANSMIT SEQUENCE (PTS) TECHNIQUE TO REDUCE THE PEAK TO AVERAGE POWER RATIO (PAPR) IN OFDM SYSTEM

Amrutha p, Anandswamy A S

Abstract: In this paper, partial transmit sequence (PTS) technique is used to improve the peak to average power ratio (PAPR) statistics in orthogonal frequency division multiplexing (OFDM) system. The PAPR value should be less than or equal to 5db, but the PAPR value of OFDM signal is 12db which is one of the major drawback. To reduce the PAPR in OFDM system we are using PTS technique but the drawback of PTS is that it has high computational complexity. Hence in this paper, we propose two modified low complexity PTS methods called serial PTS (S-PTS) and parallel PTS (P-PTS) to reduce the computational complexity of PTS technique based on the weighting factors chosen from the code words of linear block codes

Keywords: PAPR, PTS, OFDM

DOI: https://doi.org/10.15623/ijret.2016.0516048