低轨卫星网络上行链路的隐蔽通信性能研究

曾舒磊; 曹傧

doi:10.11959/j.issn.2096-8930.2024036

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低轨卫星网络上行链路的隐蔽通信性能研究

专题：星地融合网络与传输技术 | 更新时间：2025-01-02

- 低轨卫星网络上行链路的隐蔽通信性能研究
- Research on Performance of Covert Wireless Communication over Uplink LEO Satellite-Terrestrial Network
- 天地一体化信息网络 2024年5卷第4期页码：25-33
- 作者机构：
  
  1.北京邮电大学网络与交换技术全国重点实验室，北京100876
  2.北京邮电大学信息与通信工程学院，北京100876
- 作者简介：
  
  [ "曾舒磊（1992- ），男，北京邮电大学博士生，主要研究方向为卫星通信、无线网络安全、区块链技术等。" ]
  [ "曹傧（1983- ），男，博士，北京邮电大学教授，博士生导师，主要从事区块链原理与技术、移动通信和无线网络方面的研究工作。" ]
- 基金信息：
  
  国家自然科学基金资助项目(U22B2006)
- DOI：10.11959/j.issn.2096-8930.2024036
  中图分类号： TP393
- 收稿日期：2024-09-01，
  
  修回日期：2024-11-15，
  
  纸质出版日期：2024-12-20
- 稿件说明：
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曾舒磊,曹傧.低轨卫星网络上行链路的隐蔽通信性能研究[J].天地一体化信息网络,2024,05(04):25-33.

ZENG Shulei,CAO Bin.Research on Performance of Covert Wireless Communication over Uplink LEO Satellite-Terrestrial Network[J].Space-Integrated-Ground Information Networks,2024,05(04):25-33.
曾舒磊,曹傧.低轨卫星网络上行链路的隐蔽通信性能研究[J].天地一体化信息网络,2024,05(04):25-33. DOI： 10.11959/j.issn.2096-8930.2024036.

ZENG Shulei,CAO Bin.Research on Performance of Covert Wireless Communication over Uplink LEO Satellite-Terrestrial Network[J].Space-Integrated-Ground Information Networks,2024,05(04):25-33. DOI： 10.11959/j.issn.2096-8930.2024036.

摘要

大规模低轨卫星星座的部署提供了无缝的全球覆盖，与此同时，随着低轨卫星数量的增加，网络安全面临潜在的挑战，例如窃听和非法通信行为的检测等问题。为增强低轨卫星网络的安全性，研究低轨卫星网络上行链路的隐蔽无线通信至关重要。利用来自大量地面设备信号所产生的散粒噪声，隐蔽通信信号能够被有效地隐藏在上行链路的干扰和背景噪声中。基于随机几何方法，分析低轨卫星的距离分布，推导上行链路的性能与干扰表达式，并给出平均错误检测概率和传输中断概率的近似表达式。蒙特卡罗仿真验证了所提隐蔽通信性能分析方法的准确性。

Abstract

The deployment of large-scale LEO satellite constellations is rapidly advancing

enabling seamless global coverage and supporting a wide range of applications.However

this proliferation of satellites also brings significant security concerns

including risk of eavesdropping and the detection of illegal communication activities.In response to these challenges

this paper investigates covert wireless communication over uplink satellite-terrestrial network. Specifically

by leveraging shot noise caused by ambient signals from terrestrial interferers

a terrestrial transmitter (Alice) can effectively obscure her signal from warden satellites. With the aid of stochastic geometry

the distributions of distances between the transmitter and satellites were analyzed

providing key insights into the uplink performance and interference experienced within a satellite's coverage area.Approximate expressions for the detection error probability and transmission outage probability were provided. Monte Carlo simulations validated the accuracy of the analytical methods used to assess covert communication performance.

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references

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