Technology of Network & Communication
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App. Res. of Comp. Printed Article
Vol. 39, 2022 No. 12
3750-3754

Cache decision strategy for space information network

Cai Ruiyan1
Qian Yang1,2a,2b
Wei Debin1,2a,2b
1. School of Electronics & Information Engineering, Taizhou University, Taizhou Zhejiang 318000, China
2. a. Communication & Network Key Laboratory, b. College of Information & Engineering, Dalian University, Dalian Liaoning 116622, China
DOI: 10.19734/j.issn.1001-3695.2022.04.0209

Abstract

Aiming at the limited cache capacity of satellite nodes in the SIN, and the high-speed movement of satellites makes the inter-satellite link time-varying, which leads to an increase in the delay of terrestrial user content access, this paper proposed a decision-making strategy for spatial information network caching based on artificial bee colony algorithm(SIABC). Firstly, according to the periodicity and predictability of link switching of low-orbit satellite nodes, it established a network partition model, and partitioned the satellite nodes of the SIN. On this basis, it established a regional node cooperative cache model, which made the satellite nodes in the entire network area selectively cache content of different popularity, and also took taking into account the cooperative caching of nodes in the area, so that cached the content with high popularity at the edge of the network. The simulation results show that, compared with the existing caching mechanism, the caching strategy can significantly improve the average cache hit rate of the content and significantly reduce the content access delay of users.

Foundation Support

国家自然基金青年基金资助项目(61901080)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2022.04.0209
Publish at: Application Research of Computers Printed Article, Vol. 39, 2022 No. 12
Section: Technology of Network & Communication
Pages: 3750-3754
Serial Number: 1001-3695(2022)12-035-3750-05

Publish History

[2022-07-07] Accepted Paper
[2022-12-05] Printed Article

Cite This Article

蔡睿妍, 钱杨, 魏德宾. 一种空间信息网络缓存决策策略 [J]. 计算机应用研究, 2022, 39 (12): 3750-3754. (Cai Ruiyan, Qian Yang, Wei Debin. Cache decision strategy for space information network [J]. Application Research of Computers, 2022, 39 (12): 3750-3754. )

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  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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