摘要
软件定义卫星网络能够促使卫星网络管理便利化、网络控制灵活化、网络配置简单化,通过卫星控制器节点可实时掌握卫星网络的状态信息,实现卫星网络资源的集中控制与高效分配。针对卫星网络控制器部署问题研究中,星间链路的可靠性常常被忽略的问题,建立了以降低控制链路时延、提升星间链路的可靠性、维持负载均衡为研究目标,提出了一种改进的非支配排序遗传算法-Ⅲ(Improved Non-dominated Sorting Genetic AlgorithmⅢ,INSGA-Ⅲ)的卫星网络多控制器部署方法。仿真结果表明,基于INSGA-Ⅲ算法的多控制器部署方法能够降低网络时延,同时在星间链路的可靠性和网络负载均衡方面均有显著提升,在时延、负载均衡、可靠性方面,INSGA-Ⅲ相比于INSGA-Ⅱ分别提升约10.12%、97.37%、0.50%,INSGA-Ⅲ相比于NSGA-Ⅲ分别提升约6.25%、95.49%、0.44%。
Software⁃defined satellite networks can facilitate satellite network management,flexible net⁃work control,and simple network configuration.The state information of the satellite network can be grasped in real⁃time through satellite controller nodes,and centralized control and efficient distribution of satellite network resources can be realized.In the study of satellite network controller deployment,the reliability of the inter⁃satellite link is often ignored.This paper aims to reduce the delay of the control link,improve the reliability of the inter⁃satellite link and maintain load balance.An Improved Non⁃dominated Sorting Genetic AlgorithmⅢ(INSGA-Ⅲ)multi⁃controller deployment method for satellite networks is proposed.The simulation results show that the multi⁃controller deployment method based on the INSGA-Ⅲcan reduce the network delay,and significantly improve the reliability of inter⁃satellite links and network load balancing.In terms of delay,load balance,and reliability,INSGA-Ⅲimproves by about 10.12%,97.37%,and 0.50%compared with INSGA-Ⅱ,and INSGA-Ⅲimproves by about 6.25%,95.49%,and 0.44%compared with NSGA-Ⅲ,respectively.
作者
万颖
钱克昌
邢鹏
高天昊
WAN Ying;QIAN Kechang;XING Peng;GAO Tianhao(Space Engineering University,Beijing 101400,China;Unit 32151,Xingtai 054000,China;Unit 63696,Jiangyin 214400,China)
出处
《电子设计工程》
2023年第12期16-22,27,共8页
Electronic Design Engineering
基金
国家自然科学基金(61901523)。
