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- Title
基于混合进化算法的卫星网络星间数传方法.
- Authors
邓勇; 姚锋; 邢立宁; 何磊
- Abstract
Inter-satellite links play a very important role in satellite network data transmission, which can solve the problem of limited layout of ground stations in China. However, the satellite network topology is time-varying, and the inter-satellite links have intermittent connectivity, which make inter-satellite data transmission a great challenge. In order to overcome this difficulty, firstly, the satellite network is modeled by using the storage time aggregation graph. Under the condition of considering the resource constraints on the satellite, an integer programming model of data transmission is constructed. Then, a knowledge-guided hybrid evolutionary algorithm (KGHEA), which integrated local search algorithm, path traffic allocation algorithm and a variety of knowledge operators, is designed to solve the model. Finally, a simulation experiment is designed to verify the performance of the KGHEA algorithm, and the impact of various parameters on the data transmission performance is analyzed to provide a reference for the construction of inter-satellite network.
- Subjects
CHINA; EVOLUTIONARY algorithms; DATA transmission systems; EARTH stations; DELAY-tolerant networks; PROBLEM solving; INTEGER programming; CONSTRAINT programming
- Publication
Systems Engineering & Electronics, 2023, Vol 45, Issue 9, p2931
- ISSN
1001-506X
- Publication type
Article
- DOI
10.12305/j.issn.1001-506X.2023.09.33