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arXiv 2602.07959eess.SPcs.SYeess.SY
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多层网络中异构Rician衰落下的端到端安全连接概率

End-to-End Secure Connection Probability in MultiLayer Networks with Heterogeneous Rician Fading

POSTECH(韩国科学技术院);Seoul National University(首尔大学)

Hyeonsu Lyu, Yumin Kim, Hyun Jong Yang

AI总结:

本文提出了一种在异构Rician衰落条件下计算多层网络端到端安全连接概率的闭合形式表达式,并通过实验验证其在不同场景下的高准确性。

摘要:

在非地球轨道网络(NTNs)中确保物理层安全具有挑战性,因为其全球覆盖和跨异构网络层的多跳中继特性,使得潜在窃听者的地理位置和信道通常未知。本文推导了在异构Rician衰落条件下多跳中继路由的端到端安全连接概率(SCP)的可计算闭合形式表达式。所得公式在函数形式上与之前基于Rayleigh的近似方法相同,但系数不同,从而为先前工作中采用的启发式后验系数校准方法的有效性提供了分析支持。在各种条件下进行的数值实验表明,所提出的方案在大多数情况下对SCP的估计误差为1%,甚至在最坏情况下也比传统方案提高了两倍的准确性。作为案例研究,我们将所提出的框架应用于现实世界的空间-空-地-海一体化网络数据集,证明推导出的SCP能够准确捕捉实际环境中的安全趋势。

英文摘要:

Ensuring physical-layer security in non-terrestrial networks (NTNs) is challenging due to their global coverage and multi-hop relaying across heterogeneous network layers, where the locations and channels of potential eavesdroppers are typically unknown. In this work, we derive a tractable closedform expression of the end-to-end secure connection probability (SCP) of multi-hop relay routes under heterogeneous Rician fading. The resulting formula shares the same functional form as prior Rayleigh-based approximations but for the coefficients, thereby providing analytical support for the effectiveness of heuristic posterior coefficient calibration adopted in prior work. Numerical experiments under various conditions show that the proposed scheme estimates the SCP with an 1%p error in most cases; and doubles the accuracy compared with the conventional scheme even in the worst case. As a case study, we apply the proposed framework to real-world space-air-groundsea integrated network dataset, showing that the derived SCP accurately captures observed security trends in practical settings.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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