基于极值理论的FMT系统峰均功率比的研究

J4 ›› 2011, Vol. 46 ›› Issue (7): 87-91.

基于极值理论的FMT系统峰均功率比的研究

杨星海^1,2, 刘琚², 辛化梅³, 朱维红²

1. 济南大学信息科学与工程学院, 山东济南 250022; 2.山东大学信息科学与工程学院,山东济南 250100;
3. 山东师范大学物理与电子科学学院, 山东济南 250014

收稿日期:2010-08-20 出版日期:2011-07-20 发布日期:2011-09-08
作者简介:杨星海(1976- ),男,研究生,讲师,研究方向为通信信号处理,宽带无线通信. Email: ise-yangxh@ujn.edu.cn
基金资助:
国家自然科学基金项目(60872024);教育部科技创新工程重大项目培育资金项目(708059);济南市青年科技明星计划项目(20090206)

Research on the PAPR of FMT system based on extreme theory

YANG Xing-hai^{1, 2}, LIU Ju², XIN Hua-mei³, ZHU Wei-hong²

1. School of Information Science and Engineering, University of Jinan, Jinan 250022, Shandong, China;
2. School of Information Science and Engineering, Shandong University, Jinan 250100, Shandong, China;
3. College of Physics and Electronics, Shandong Normal University, Jinan 250014, Shandong, China

Received:2010-08-20 Online:2011-07-20 Published:2011-09-08

摘要/Abstract

摘要：

滤波多音调制(filtered multitone modulation, FMT)技术具有良好的抗多径和信道间干扰的能力,但是作为多载波技术,FMT技术和正交频分复用(orthogonal frequency division multiplexing,OFDM)技术一样有着高的峰均功率比,成为制约FMT技术应用的一个重要因素。本文采用随机信号处理的极值理论推导了FMT信号峰值平均功率比的累积分布函数。分布函数表明FMT信号的峰均功率比的分布和OFDM是相同的,其分布曲线跟原型滤波器的类型、长度等无关。最后通过仿真实验验证了该结论。

关键词: 滤波多音调制;正交频分复用;峰均功率比;极值理论

Abstract:

Filtered multitone modulation (FMT) technique has good ability on conquering multipath and interchannel interference (ICI). FMT is also affected from high peak-to-average power ratio (PAPR) just as OFDM, and the high PAPR has weakened the performance of FMT. The complementary cumulative distribution function (CCDF) of PAPR of FMT system is obtained based on the extreme theory. The CCDF analysis shows that the PAPR distribution of FMT is as same as that of OFDM, which has nothing to do with the filter type and length. Finally, the conclusions are verified by the simulation experiments.

Key words: FMT; OFDM; peak-to-average power ratio (PAPR); extreme theory

杨星海1,2, 刘琚2, 辛化梅3, 朱维红2. 基于极值理论的FMT系统峰均功率比的研究[J]. J4, 2011, 46(7): 87-91.

YANG Xing-hai1, 2, LIU Ju2, XIN Hua-mei3, ZHU Wei-hong2. Research on the PAPR of FMT system based on extreme theory[J]. J4, 2011, 46(7): 87-91.

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