天地一体化信息网络2024，Vol.5Issue(4)：25-33,9.DOI:10.11959/j.issn.2096-8930.2024036
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
摘要
Abstract
The deployment of large-scale LEO satellite constellations is rapidly advancing,enabling seamless global coverage and sup-porting 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 wire-less communication over uplink satellite-terrestrial network.Specifically,by leveraging shot noise caused by ambient signals from ter-restrial 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 per-formance 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.关键词
低轨卫星网络/隐蔽通信/随机几何/物理层安全/上行链路Key words
LEO satellite communication network/covert communication/stochastic geometry/physical layer security/uplink分类
信息技术与安全科学引用本文复制引用
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,2024,5(4):25-33,9.基金项目
国家自然科学基金资助项目(No.U22B2006)The National Natural Science Foundation of China(No.U22B2006) （No.U22B2006）
