航空学报 > 2020, Vol. 41 Issue (4): 323546-323546   doi: 10.7527/S1000-6893.2019.23546

多状态空间信息网络拓扑生成优化算法

潘成胜1,2, 行贵轩1,2, 戚耀文3, 杨力1,2   

  1. 1. 大连大学 信息工程学院, 大连 116622;
    2. 大连大学 通信与网络重点实验室, 大连 116622;
    3. 南京理工大学 自动化学院, 南京 210094
  • 收稿日期:2019-10-08 修回日期:2019-12-23 出版日期:2020-04-15 发布日期:2019-12-19
  • 通讯作者: 行贵轩 E-mail:505380332@qq.com
  • 基金资助:
    国家自然科学基金(61931004,61901080);辽宁省自然基金指导计划(2019-ZD-0312)

Topological generation and optimization method in multi-state space information network

PAN Chengsheng1,2, XING Guixuan1,2, QI Yaowen3, YANG Li1,2   

  1. 1. College of Information Engineering, Dalian University, Dalian 116622, China;
    2. Communication and Networks Laboratory, Dalian University, Dalian 116622, China;
    3. School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China
  • Received:2019-10-08 Revised:2019-12-23 Online:2020-04-15 Published:2019-12-19
  • Supported by:
    National Natural Science Foundation of China (61931004,61901080); Natural Foundation Guidance Plan of Liaoning Province(2019-ZD-0312)

摘要: 依据空间信息网络(SIN)高动态性的特点,并考虑卫星工作的多状态特性,兼顾星间通信时延和拓扑抗毁性的要求,研究了多状态下空间信息网络拓扑生成及动态优化的问题。根据卫星星座的周期性,建立了一种卫星网络的拓扑周期表。综合卫星的可视性和连接度等约束条件,以网络平均和最大时延作为通信性能的优化目标,建立拓扑的多目标优化模型。提出一种改进的多目标模拟退火(IMOSA)算法,求解全局时延最优的卫星拓扑,并在考虑多状态情况下对链路进行优化,以满足网络高动态性。最后基于具有66颗低轨(LEO)的铱星星座进行仿真,研究表明:针对多状态条件下的铱星星座,该算法最大化减小了通信时延,得到抗毁性良好的拓扑结构,通信性能较之原有静态拓扑明显得到改善。

关键词: 空间信息网络, 网络拓扑, 多目标优化, 节点多状态, 多目标模拟退火算法

Abstract: The topological generation and optimization of Space Information Network (SIN) in multi-state is studied based on the high dynamicity in SIN, the multi-state characteristics of satellites, and the requirements of communication time-delay and topological invulnerability. According to the periodicity of satellite constellation, a periodic table of satellite constellation topologies is established. Considering the constraints of satellite visibility and connectivity degree, a multi-objective optimization model of network topology is set up, with network average and maximal delay as optimization targets. An Improved Multi-Objective Simulated Annealing (IMOSA) algorithm is proposed and used for solving the structure of global optimization topology. Considering the multi-state characteristics, the time-delay of topology is optimized to satisfy the high dynamicity. The final simulation based on the Iridium Constellation with 66 Low Earth Orbit (LEO) satellites in multi-state situation shows that, the algorithm can maximize the decreasing of communication delay and obtain favorable invulnerability topology structures. Compared with the previous static typology, the communication ability of topology generated by the algorithm improved significantly.

Key words: space information network, network topology, multi-objective optimization, node multi-state, multi-objective simulated annealing algorithm

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