Improved phase selection algorithm for continuous-phase PTS-OFDM systems

Partial Transmit Sequence (PTS) is an efficient technique to reduce the high peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals without any distortion. For further improving the PAPR reduction performance, a continuous-phase PTS (CP-PTS) scheme has been proposed. In this paper, an improved phase selection algorithm is developed for CP-PTS for more efficient PAPR reduction. We show that the proposed technique can efficiently improve the PAPR reduction performance but without additional computational complexity.