Transmission frequency-band hidden technology in physical layer security

物理层安全中的频带隐藏技术研究

Science China Information Sciences volume 59, pages1–3(2016)Cite this article

创新点

由于无线信道的慢衰落特性,当窃听者拥有比发送者更多的天线时,传统人工噪声方法很难保证信息传输的安全性。因此,本文提出一种基于频带隐藏的物理层安全技术。多天线发送者在多个频带同时发送信号,而真实的信号随机隐藏在其中某些频带上,其余频带发送类信号干扰。通过设计发送权值,使得合法接受者只收到真实的信号,不受干扰影响。同时,窃听者收到一个宽带的信号,无法辨别真实信号频带。由于等效信道的快速变化,窃听者即使拥有更多的天线,也很难得到原始信息。

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Affiliations

  1. National Digital Switching System Engineering & Technological Research Center, Zhengzhou, 450002, China

    Xiangyu Li, Liang Jin, Kaizhi Huang & Lu Liu

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  1. Xiangyu Li
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  2. Liang Jin
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  3. Kaizhi Huang
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  4. Lu Liu
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Correspondence to Liang Jin.

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Li, X., Jin, L., Huang, K. et al. Transmission frequency-band hidden technology in physical layer security. Sci. China Inf. Sci. 59, 1–3 (2016). https://doi.org/10.1007/s11432-015-5463-y

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关键词

  • 物理层安全
  • 频带隐藏
  • 人工噪声
  • 安全传输速率
  • 多输入多输出