Improved partial transmission sequence algorithm for universal filtered multi-carrier system

被引：0
|
作者：
Yang W. [1 ]
Zuo Y. [1 ]
Liu N. [1 ]
机构：
[1] School of Electronic Information Engineering, Beijing Jiaotong University, Beijing
来源：
Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2019年 / 47卷 / 11期
关键词：
Multi-level optimization; Partial transmission sequence (PTS); Peak-to-average power ratio (PAPR); Power threshold; Universal filtered multi-carrier (UFMC);
D O I：
10.13245/j.hust.191103
中图分类号：
学科分类号：
摘要：
Aiming at the problem of high peak-to-average power ratio (PAPR) for universal filtered multi-carrier (UFMC) system, a multi-level optimization partial transmission sequence (PTS) algorithm based on fixed power threshold was proposed.The number of sample signals in time domain could be reduced in the process of peak power optimization by applying the power threshold in the traditional PTS method, and the computation complexity was also reduced consequently.The problem that the computation complexity increased exponentially with the element number of phase set in the traditional PTS method could be solved with the multi-level optimization PTS method.To further reduce the computation complexity, it was proposed to combine the multi-level optimization and power threshold in the traditional PTS method.The same fixed threshold could be applied in the multi-level PTS method, which could further simplify the decision structure of multi-level optimization PTS.Simulation results show that the proposed multi-level PTS algorithm based on fixed power threshold not only can guarantee the performance of UFMC system to suppress high PAPR, but also significantly reduce the computational complexity, and can be applied to orthogonal frequency division multiplexing (OFDM) systems. © 2019, Editorial Board of Journal of Huazhong University of Science and Technology. All right reserved.
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页码：12 / 17
页数：5
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