On the Security of LEO Satellite Communication Systems: Vulnerabilities, Countermeasures, and Future Trends

Abstract

<div>In view of the development status of the security of LEO satellite communication system, a comprehensive review, induction, and summary is carried out.<br></div>

Evaluating the Accuracy of Stochastic Geometry Based Models for LEO Satellite Networks Analysis

“…Smaller orbit inclinations, lower altitudes and more satellites lead to smaller distances. Stochastic geometry model is more suitable in analyzing Starlink megaconstellation (γ ≈ 53 • , N P = 41927, h = 550km), than Iridium (γ ≈ 87.5 • , N P = 81, h = 778km) and OneWeb (γ ≈ 87.5 • , N P = 720, h = 1200km) constellations [1]. V. CONCLUSION As a point process suitable for theoretical analysis, homogeneous BPP is an excellent substitute for both Fibonacci lattice-based point set and orbit model-based point process.…”

“…With the recent advances in the low Earth orbit (LEO) satellites industry, a wide range of applications are anticipated to benefit from more than 4,700 LEO satellites launched in space [1]. One main application is providing seamless global coverage and low-latency ultra-distance communication [2].…”

Enhancing Physical Layer Security via Information Hiding and Chaotic Frequency-Hopping Signal

“…With the development of super computation ability and the invention of quantum computer, the conventional calculation quantity based encryption system suffers great impact, besides, deploy traditional encryption methods with higher complexity will increase system hardware and software requirements of satellite communication networks, it is unpractical. Therefore, how to protect data confidentiality of satellite communication links with low cost and high efficiency is really an urgent and valuable problem, and there is a paucity of literature on this theme [7,8] . Under such background, physical layer security (PLS) has attracted more attention in recent years, and novel information theory based security approaches focus on physical layer security issues are experiencing explosive growth [9][10][11][12][13][14][15][16] .…”