基于动态调整功率分配因子的无人机中继的秘密能力的优化方法
Yunqi Hao1, Youyang Xiang1, Qilong Du1
1Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, China.
Sensors (Basel, Switzerland)
|January 28, 2026
概括
这项研究通过动态调整无人机中功率分配来提高无线安全性. 拟议的方法使用人工噪声 (AN) 来显著提高对窃听者的保密能力和通信可靠性.
科学领域:
- 无线通信安全 无线通信安全
- 信息理论 信息理论
- 优化技术 优化技术
背景情况:
- 无线通道容易受到窃听,特别是当窃听者有强烈的信号时.
- 传统的电力优化努力抵制高质量的窃听频道.
- 无人驾驶飞行器 (UAV) 传输由于其广播性质而带来了独特的安全挑战.
研究的目的:
- 提出一种新的优化方法,以提高无人机中继系统的保密能力.
- 解决安全无线传输中传统功率优化的局限性.
- 通过动态调整功率分配因子来最大限度地提高保密率.
主要方法:
- 制定一个联合优化问题,以最大限度地提高四节点模型 (源,UAV,目的地,窃听器) 的保密率.
- 使用连续凸近似法 (SCA) 将非凸问题转换为凸问题.
- 使用水填充 (WF) 算法进行分析解决方案,并使用人工噪声 (AN) 的交替代优化算法进行全球优化.
主要成果:
- 拟议的动态功率分配方法有效地抑制了窃听通道容量.
- 人工噪音注入与实时通道信息相结合,精确地堵塞了窃听链接.
- 模拟结果显示,与传统方法相比,保密性能和通信可靠性得到了实质性的改进.
结论:
- 开发的优化方法显著提高了无人机辅助无线通信的安全性.
- 动态功率分配和人工噪声是打击窃听的有效策略.
- 这种方法提高了在具有挑战性的无线环境中保密能力和整体系统可靠性.
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