Wavelet packet modulation (WPM) is a potential candidate in wireless communication systems by virtue of its flexibility and modular implementation capability. However, WPM suffers from high peak-to-average power ratio (PAPR), which results in signal distortion when a high-power amplifier is employed at the transmitter. The partial transmit sequence (PTS) is an attractive PAPR reduction method, but its computational complexity is high. In this paper, we propose a PTS based on the genetic algorithm (GA) scheme (GA-PTS) to reduce the computational complexity of the PTS in the lifting-based WPM (LBWPM) systems. Simulation results show that the proposed GA-PTS scheme provides significant improvement in PAPR reduction while maintaining a low computational load. The cumulative distribution function performance of the LBWPM system is better than the performance of the classical WPM.
TAŞPINAR, NECMİ and BOZKURT, YÜKSEL TOKUR
"PAPR reduction using genetic algorithm in lifting-based wavelet packet modulation systems,"
Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 24:
1, Article 14.
Available at: https://journals.tubitak.gov.tr/elektrik/vol24/iss1/14