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High Order Differential Frequency Hopping: Design and Analysis

机译：高阶差分跳频：设计与分析

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摘要

This paper considers spectrally efficient differential frequency hopping (DFH) system design. Relying on time-frequency diversity over large spectrum and high speed frequency hopping, DFH systems are robust against hostile jamming interference. However, the spectral efficiency of conventional DFH systems is very low due to only using the frequency of each channel. To improve the system capacity, in this paper, we propose an innovative high order differential frequency hopping (HODFH) scheme. Unlike in traditional DFH where the message is carried by the frequency relationship between the adjacent hops using one order differential coding, in HODFH, the message is carried by the frequency and phase relationship using two-order or higher order differential coding. As a result, system efficiency is increased significantly since the additional information transmission is achieved by the higher order differential coding at no extra cost on either bandwidth or power. Quantitative performance analysis on the proposed scheme demonstrates that transmission through the frequency and phase relationship using two-order or higher order differential coding essentially introduces another dimension to the signal space, and the corresponding coding gain can increase the system efficiency.
机译：本文考虑了频谱有效的差分跳频（DFH）系统设计。依靠大频谱上的时频分集和高速跳频，DFH系统具有强大的抗干扰干扰能力。但是，由于仅使用每个信道的频率，常规DFH系统的频谱效率非常低。为了提高系统容量，在本文中，我们提出了一种创新的高阶差分跳频（HODFH）方案。与传统的DFH不同，在传统的DFH中，消息是使用一阶差分编码通过相邻跃点之间的频率关系来承载的，而在HODFH中，消息是通过使用二阶或更高阶差分编码的频率和相位关系来承载的。结果，由于通过高阶差分编码实现了额外的信息传输，而在带宽或功率上都没有额外的成本，因此系统效率得到了显着提高。对提出的方案进行量化性能分析表明，使用二阶或更高阶差分编码通过频率和相位关系进行传输实质上会在信号空间中引入另一个维度，并且相应的编码增益可以提高系统效率。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第11期|586080.1-586080.9|共9页
  • 作者

    Li Yong; Yao Fuqiang; Xu Ba;

  • 作者单位

    Nanjing Telecommun Technol Inst, Nanjing 210007, Jiangsu, Peoples R China.;

    Nanjing Telecommun Technol Inst, Nanjing 210007, Jiangsu, Peoples R China.;

    Nanjing Telecommun Technol Inst, Nanjing 210007, Jiangsu, Peoples R China.;

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