基于加权型分数阶傅里叶变换的混合载波方案的PAPR

Lin Mei, X. Sha, Naitong Zhang
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引用次数: 8

摘要

近年来,提出了一种利用加权型分数阶傅里叶变换(WFRFT)统一单载波(SC)格式和多载波(MC)格式的方法。WFRFT通信系统不仅可以工作在SC或MC方案中,还可以工作在SC和MC信号在同一频带内同时传输的混合方案中。作为一种统一的方案,WFRFT系统继承了SC和MC的特性,当然也包括峰值平均功率比(PAPR)问题。本文研究了WFRFT系统的PAPR,并证明其具有介于SC和MC系统之间的中间状态。WFRFT系统的PAPR可以用WFRFT的变换阶数来修改,也可以用现有的PAPR减小方法来减小。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
PAPR of hybrid carrier scheme based on weighted-type fractional Fourier transform
Recently, an approach to unify the single carrier (SC) scheme and the multi-carrier (MC) scheme was proposed by means of the weighted-type fractional Fourier transform (WFRFT). The WFRFT communication systems can work not only in SC or MC scheme, but also a mixed scheme that both of the SC and MC signals are transmitted in the same frequency bandwidth simultaneously. As a unified scheme, the WFRFT systems inherit the properties of both SC and MC, of course, including the peak-to-average power ratio (PAPR) issue. In this paper, we study the PAPR of the WFRFT systems and demonstrate that it has an intermediate state between those of SC and MC systems. The PAPR of the WFRFT systems can be modified with transform order of the WFRFT and reduced by current methods of the PAPR reduction.
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