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Optimized baseband Nyquist pulse-based PAPR reduction method for SEFDM systems

Author

Listed:
  • Mingxin Liu

    (Harbin Engineering University)

  • Wei Xue

    (Harbin Engineering University
    Yantai Research Institute of Harbin Engineering University
    Ministry of Industry and Information Technology)

  • Jincheng Gao

    (Zhaojin Mining Industry Co., Ltd.)

  • Yidong Xu

    (Harbin Engineering University
    Yantai Research Institute of Harbin Engineering University
    Ministry of Industry and Information Technology)

  • Peisong Jia

    (Yantai Research Institute of Harbin Engineering University)

  • Wenjian Chen

    (Harbin Engineering University)

Abstract

The optimized Nyquist pulse is used as a baseband signal of spectrally efficient frequency division multiplexing (SEFDM) system, where subcarriers use cyclic forms of the Nyquist pulse to reduce their mutual correlation, the probability of in-phase occurrence between them, and reduce the probability of the SEFDM signal peak. To reduce the subcarrier correlation and to establish a generic model based on fast roll-off characteristics, the ratio of the energy of the main lobe interval of the main function of the Nyquist pulse to the overall energy is set as a limiting condition. Based on the Fourier series, numerical methods are used to solve the limited long-pulse function. This function is multiplied by the sinc function to construct the Nyquist pulse that is suitable for reducing the peak-to-average power ratio of the SEFDM system. Simulation results have verified that under different symbol mapping types, the proposed optimized Nyquist pulse can achieve a significantly better PAPR reduction effect than the raised cosine Nyquist pulse and some of the commonly used Nyquist pulses in the SEFDM systems under different roll-off factors.

Suggested Citation

  • Mingxin Liu & Wei Xue & Jincheng Gao & Yidong Xu & Peisong Jia & Wenjian Chen, 2022. "Optimized baseband Nyquist pulse-based PAPR reduction method for SEFDM systems," Telecommunication Systems: Modelling, Analysis, Design and Management, Springer, vol. 81(2), pages 289-306, October.
    • Handle: RePEc:spr:telsys:v:81:y:2022:i:2:d:10.1007_s11235-022-00946-7
    DOI: 10.1007/s11235-022-00946-7
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