论文部分内容阅读
卫星综合信息网是未来空间信息技术发展的方向之一。本文针对卫星综合信息网应用设计了一种由静止轨道、中轨道和低轨道卫星节点构成的结构简洁的三层卫星网络架构,每一层网络仅使用永久性链路形成稳定拓扑,不同层网络在分簇的基础上使用可视时间较长的星间链路建立跨层连接。本文进一步设计了在该架构下的最小延迟路由算法。OPNET上的仿真实验表明,本文所设计的卫星综合信息网架构稳定,具有较强的通信承载和适应节点故障的性能。
Satellite Integrated Information Network is one of the directions for the future development of spatial information technology. In this paper, a three-layer satellite network structure with simple structure consisting of static orbit, medium-orbit and low-orbit satellite nodes is designed for the application of satellite integrated information network. Each layer of network uses only permanent links to form a stable topology. Different layers of networks Cross-layer connections are established on the basis of clustering using inter-satellite links with long visual time. This paper further designs the minimum delay routing algorithm in this architecture. The simulation experiments on OPNET show that the satellite integrated information network designed in this paper has a stable architecture with strong communication bearer and adaptive node failure performance.