| 一种减小正交频分复用系统峰均功率比的方法 |
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| 引用本文： | 孔德彭,张国平.一种减小正交频分复用系统峰均功率比的方法[J].兵工学报,2010,31(2):166-170. |
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| 作者姓名： | 孔德彭 张国平 |
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| 作者单位： | 华中师范大学,物理学院,湖北,武汉,430079;华中师范大学,物理学院,湖北,武汉,430079 |
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| 摘 要： | 介绍一种只需有效保持系统带宽效率的情况下,恰当选择各子载波的时域波形,为信道编码留下余地便可以改善信号的峰均功率比(PAPR)特性的技术方法。该技术是基于改进Nyquist脉冲反转双曲正切脉冲(FSECH)成形技术(NS),其思想是将原始数据序列和成形脉冲矩阵相乘产生新序列,使多载波的各子载波符号间具有一定的相关性。此方法便于实现,适用任何载波系统,对多载波系统,可以带来3 dB的抑制效果,给出CCDF和系统性能BER仿真图。
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| 关 键 词： | 通信技术 正交频分复用 多载波 峰均功率比 改进Nyquist脉冲 |
Peak-to-average Power Ratio Reduction Method for Orthogonal Frequency Division Multiplexing Systems |
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| KONG De-peng,ZHANG Guo-ping.Peak-to-average Power Ratio Reduction Method for Orthogonal Frequency Division Multiplexing Systems[J].Acta Armamentarii,2010,31(2):166-170. |
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| Authors: | KONG De-peng ZHANG Guo-ping |
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| Affiliation: | (College of Physical Science and Technology, Huazhong Normal University, Wuhan 430079, Hubei, China) |
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| Abstract: | A peak-to-average power ratio reduction method for orthogonal frequency division multiplexing(OFDM) systems was described,which only requires to maintain the efficiency of system bandwidth,keep the appropriate selection of sub-carrier time-domain waveform and leave free space for channel coding.Based on the improved Nyquist pulse FSECH forming technology(NS),new pulse sequences can be generated by multiplying the raw data sequence and the forming pulse matrices,so that a certain correlation exists between s... |
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| Keywords: | communication orthogonal frequency division multiplexing multi-carrier peak-to-average power ratio improved Nyquist pulse |
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