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面向任务驱动的动态可伸缩空间信息网络架构设计与优化

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现阶段空间信息网络中各卫星子系统各成体系且相互割裂,使得网络呈现封闭、分裂态势,形成严峻资源壁垒,造成空间资源协同应用能力弱以及网络扩展能力低等难题.传统架构设计采用对现阶段空间网络架构的"完全颠覆"的思路,大大增加了实际部署的难度.为此,该文立足于卫星网络现状,采取"按步骤分阶段升级"的思路,促进现有网络架构的演进,从任务驱动角度开展动态可伸缩空间信息网络架构模型研究,实现空间资源在各卫星子系统间高效动态共享,促进空间资源根据任务需求变化而动态高效汇聚.首先,提出分阶段实现的网络架构模型,旨在兼容和升级现有网络架构.随后,介绍核心部件网络资源协调器的详细设计,包括网络结构与工作协议、超帧结构以及高效的网络资源动态分配策略,实现空间数据的高效传输.仿真结果表明,所提网络架构实现了网络资源高效共享,大大提升空间信息网络的网络性能.
Design and Optimization of Task-driven Dynamic Scalable Network Architecture in Spatial Information Networks
At the present stage,the satellite subsystems in Space Information Networks(SINs)have their own systems and are separated from each other,which makes the network appear closed and fragmented,forming a severe resource barrier and resulting in weak collaborative application ability of space resources and low network expansion ability.The traditional architecture design adopts the"completely subversive"idea of the current space networks,which greatly increases the difficulty of actual deployment.Therefore,based on the current status of satellite networks,the idea of"upgrading step by step"is adopted to promote the evolution of the existing network architecture,and a dynamic and scalable architecture model is proposed in SINs from the perspective of mission drive,so as to realize the efficient and dynamic sharing of space resources among subsystems and promote the dynamic and efficient aggregation of space resources according to the changes in mission requirements.Firstly,a phased network architecture model is proposed,aiming at compatibility and upgrading of the existing network architecture.Then,the design of the core component coordinator is introduced,including network structure and working protocol,superframe structure,and efficient network resource allocation strategy,to realize the efficient transmission of spatial data.The simulation results show that the proposed network architecture realizes the efficient sharing of network resources and greatly improves the utilization rate of network resources.

Spatial information networksNetwork architectureResource allocationData transmission

何立军、贾子晔、李世银、汪彦婷、王丽、刘磊

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中国矿业大学信息与控制工程学院 徐州 221116

南京航天航空大学电子信息工程学院 南京 210024

西北工业大学软件学院 西安 710072

西安邮电大学通信与信息工程学院 西安 710121

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空间信息网络 网络架构 资源分配 数据传输

2024

电子与信息学报
中国科学院电子学研究所 国家自然科学基金委员会信息科学部

电子与信息学报

CSTPCD北大核心
影响因子:1.302
ISSN:1009-5896
年,卷(期):2024.46(12)