A low complexity partial transmit sequence approach based on hybrid segmentation scheme

The partial transmit sequences (PTS) is regarded as a promising scheme for inhibiting the high peak-to-average power ratio (PAPR) problem in the orthogonal frequency division multiplexing (OFDM) systems. The PTS scheme relies on partitioning the data sequence into subsets and weighting these subsets by a group of the phase rotation factors. Although the PTS can efficiently reduce the high PAPR value, a great computational complexity (CC) level restricts the utilization of the PTS scheme in practical applications. In PTS, there are three common types of segmentation schemes; interleaving (IL-PTS), pseudo-random (PR-PTS), and adjacent (Ad-PTS) schemes. This paper presents a new algorithm named hybrid pseudo-random and interleaving cosine wave shape (H-PRC-PTS) by combining the PR-PTS scheme and the symmetrical interleaving cosine wave shape (S-IL-C-PTS) scheme which was proposed in our previous work. The results indicate that the suggested algorithms can diminish the PAPR value like the PR-PTS scheme, whereas the CC level is reduced significantly