PAPR reduction in OFDM using PTS and DCT technique

Abstract

PAPR is considered as the fundamental problem in OFDM. The increase in PAPR signal can result into a non-uniform output even though the input is uniform, so it degrades the quality of the signal. Moreover, the large peaks cause saturation in the power amplifiers, thus it is desirable to reduce the PAPR in the signal. Therefore, the paper focused on proposing a new technique that is using PTS and Clipping technique altogether. The proposed work considered double threshold value in order to clip upper and lower data simultaneously. Furthermore, traditional PTS technique is combined with the DCT to improve the quality of the signal. The experimental analysis has performed using different techniques which concludes that the proposed technique outperforms the other and is capable of reducing the PAPR in the signal.