在非对称噪声系统中用于OOK的秘密通信方案.
Weicheng Xu1, Xiaopeng Ji1, Ruizhi Zhu1
1School of Electronics and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China.
Sensors (Basel, Switzerland)
|May 14, 2025
概括
这项研究引入了一种基于阶段的开关密钥 (OOK) 编码方案,用于在不对称的噪音环境中进行秘密通信. 调整初始阶段通过利用噪声特征来提高隐蔽性和传输速率.
科学领域:
- 信息理论 信息理论
- 通信工程 通信工程
- 信号处理 信号处理
背景情况:
- 现有的使用开关密钥 (OOK) 的秘密通信方案因无法处理不对称的噪音环境而受到限制.
- 这种限制限制了它们在特拉赫兹和水下声学秘密通信等先进场景中的应用.
研究的目的:
- 提出一种基于相位的OOK编码方案,用于在不对称的噪声条件下进行秘密通信.
- 通过利用噪声特征来提高隐蔽传输的性能,以更好地掩盖噪声.
主要方法:
- 提出了一个基于相位的OOK编码方案,允许发射器相位调整以与更强的噪声组件保持一致.
- 使用Kullback-Leibler (KL) 差异和相互信息来量化隐蔽性和传输性能.
- 制定并解决了一个优化问题,通过调整信号分布,振幅和初始相来最大限度地提高隐蔽传输速率.
主要成果:
- 初始相角和高斯噪声组件在不对称噪声系统中显著影响隐蔽度和传输速率.
- 优化初始阶段以与较低噪声方向保持一致,有效地抑制干扰.
- 拟议的方案表明在不对称的噪音环境中提高了隐蔽性和传输性能.
结论:
- 基于阶段的OOK编码方案在具有挑战性的不对称噪声场景中为秘密通信提供了可行的解决方案.
- 最初阶段的战略调整对于最大限度地提高隐蔽性和数据速率至关重要.
- 这项研究在复杂的环境中,如太赫兹和水下声学,提高了秘密通信能力.
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