We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Optimized baseband Nyquist pulse-based PAPR reduction method for SEFDM systems.
- Authors
Liu, Mingxin; Xue, Wei; Gao, Jincheng; Xu, Yidong; Jia, Peisong; Chen, Wenjian
- 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.
- Subjects
FREQUENCY division multiple access; BASEBAND; PHOTOPLETHYSMOGRAPHY; FOURIER series
- Publication
Telecommunication Systems, 2022, Vol 81, Issue 2, p289
- ISSN
1018-4864
- Publication type
Article
- DOI
10.1007/s11235-022-00946-7