Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (9): 2931-2940.doi: 10.12305/j.issn.1001-506X.2023.09.33

• Communications and Networks • Previous Articles     Next Articles

Inter-satellite data transmission method in satellite network based on hybrid evolutionary algorithm

Yong DENG1, Feng YAO1,*, Lining XING2, Lei HE1   

  1. 1. School of System Engineering, National University of Defense Technology, Changsha 410073, China
    2. School of Electronic Engineering, Xidian University, Xi' an 710075, China
  • Received:2022-08-15 Online:2023-08-30 Published:2023-09-05
  • Contact: Feng YAO

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.

Key words: hybrid evolutionary algorithm, genetic algorithm, satellite network, delay tolerant network, inter-satellite data transmission

CLC Number: 

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