多波束低地轨道卫星系统中隐蔽通信的多维资源分配

IF 2.6 3区 工程技术 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS
Renge Wang, Minghao Chen, Luyan Xu, Zhong Wen, Yiyang Wei, Shice Li
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引用次数: 0

摘要

卫星通信系统,特别是多波束低地轨道(LEO)卫星,可以通过灵活的资源分配满足不同工业应用的需求。遗憾的是,由于低地轨道卫星覆盖面广,低地轨道卫星网络内的数据交换存在被窃听和恶意干扰的风险,这可能会严重降低工业生产过程的性能。为应对这些挑战,本文介绍了一种多维资源分配策略,以促进多波束低地轨道卫星网络内的隐蔽通信。我们的方法既能确保不同用户设备的速率要求,又能防止地球静止轨道(GEO)卫星窃听通信信号。具体来说,我们提出了一个优化问题,在隐蔽性约束条件下联合优化卫星跳束调度、频带分配和不同用户设备的发射功率。通过引入辅助二进制变量,我们将该优化问题转化为混合整数线性规划(MILP)问题,从而可以利用基于机器学习的技术高效地找到解决方案。模拟结果证明了我们所提方案的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multi-Dimensional Resource Allocation for Covert Communications in Multi-Beam Low-Earth-Orbit Satellite Systems
Satellite communication systems, especially multi-beam low-Earth-orbit (LEO) satellites, could cater to the needs of different industrial applications through flexible resource allocation. Unfortunately, due to the wide coverage of LEO satellites, the data exchange within the LEO satellite networks suffers from the risk of eavesdropping and malicious jamming, which could severely degrade the performance of the industrial production process. To address such challenges, this paper introduces a multi-dimensional resource allocation strategy to facilitate covert communication within the multi-beam LEO satellite network. Our approach ensures the rate requirements of different user equipments while preventing the detection of communication signals by an eavesdropping geostationary orbit (GEO) satellite. Specifically, we formulate an optimization problem that jointly optimizes satellite beam-hopping scheduling, frequency band allocation, and the transmit power of different user equipments, under the covertness constraint. By introducing auxiliary binary variables, we transform this optimization problem into a Mixed-Integer Linear Programming (MILP) problem, which allows us to utilize machine learning-based techniques for efficient solution finding. The simulation results demonstrate the effectiveness of our proposed scheme.
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来源期刊
Electronics
Electronics Computer Science-Computer Networks and Communications
CiteScore
1.10
自引率
10.30%
发文量
3515
审稿时长
16.71 days
期刊介绍: Electronics (ISSN 2079-9292; CODEN: ELECGJ) is an international, open access journal on the science of electronics and its applications published quarterly online by MDPI.
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