电子学报 ›› 2022, Vol. 50 ›› Issue (5): 1266-1269.DOI: 10.12263/DZXB.20210423

• 科研通信 • 上一篇    下一篇

天基信息港对等共享网络性能仿真

宋唐益嘉1, 胡鹤飞1, 张思睿1, 许凌毅2, 辛宁3   

  1. 1.北京邮电大学信息与通信工程学院, 北京 100876
    2.北京邮电大学电子工程学院, 北京 100876
    3.中国空间技术研究院通信与导航卫星总体部, 北京 100094
  • 收稿日期:2021-03-31 修回日期:2021-06-09 出版日期:2022-05-25 发布日期:2022-06-18
  • 通讯作者: 胡鹤飞
  • 作者简介:宋唐益嘉 女, 1998年1月生于湖南常德. 现为北京邮电大学信息与通信工程学院硕士研究生.主要研究方向为卫星网络、网络功能虚拟化等.E‑mail: styj_christina@bupt.edu.cn
    胡鹤飞 男, 1977年5月生于重庆.现为北京邮电大学副教授,研究生导师.主要研究方向为卫星网络, 网络功能虚拟化及其他新型网络. E‑mail: huhefei@bupt.edu.cn

Performance Simulation of P2P Network in Space‑Based Information Port

SONG Tang-yi-jia1, HU He-fei1, ZHANG Si-rui1, XU Ling-yi2, XIN Ning3   

  1. 1.School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China
    2.School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China
    3.Communications and Navigation Satellite General Department,China Academy of Space Technology,Beijing 100094,China
  • Received:2021-03-31 Revised:2021-06-09 Online:2022-05-25 Published:2022-06-18
  • Contact: HU He-fei

摘要:

由于空间设备资源扩展能力和物理环境的限制造成天基信息港网络丢包率与时延较高,无法满足高性能信息任务处理需求.本文对对等共享网络的集中式和结构化分布式网络结构模型进行具体研究,共提出了四种天基信息港对等共享网络模型方案.基于PeerSim仿真平台对所提出的结构化分布式对等网络搭建了仿真平台,研究关键参数对网络性能的影响.结果表明,对于节点移动性强的大型卫星网络,天基信息港结构化分布式双层对等网络相较于单层网络不仅时延减少近90%,并能够保证查找成功率达到98%以上.通过仿真验证了我们所提方案的合理性,具备提高天基信息港信息处理能力的优势.

关键词: 天基信息港, 卫星通信, 对等网络, 结构化网络, Kademlia协议, PeerSim仿真平台

Abstract:

Due to the limitation of space equipment resource expansion ability and physical environment, making the packet loss rate and delay high, so the space-based information port cannot meet the requirements of high-performance information task processing. This paper studies the centralized and structured distributed network structure models of P2P (Peer to Peer) sharing network, and puts forward four P2P sharing network model schemes. Based on PeerSim simulation platform, a simulation platform is built for the proposed structured distributed peer-to-peer network, and the influence of key parameters on network performance is studied. The results show that for large satellite networks with strong node mobility, compared with the single layer network, the structured distributes two-layer P2P network of the space-based information port can not only reduce the time delay by nearly 90%, but also ensure that the success rate of the search can reach more than 98%. The simulation results verify the rationality of the proposed scheme, which can improve the information processing ability of the space-based information port.

Key words: space-based information port, satellite communications, peer-to-peer network, structured network, Kademlia protocol, PeerSim simulation platform

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