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A Research on Integrated Space-Ground Information Network Simulation Platform Based on SDN
Computer Networks ( IF 5.6 ) Pub Date : 2021-01-12 , DOI: 10.1016/j.comnet.2021.107821
Yu Zhang , Bo Wang , Bingli Guo , Yabo Yuan , Tao Dong , Jie Yin , Kexin Li , Xiang Guo , Shanguo Huang

With the development of society, ground communication technologies are hard to meet the demands of communicating at anytime and from anywhere. As a result, the integrated space-ground information network, which connects the satellites with ground stations to provide seamless and efficient global communications, is becoming one of the most important and potential networks for future communications. In the integrated space-ground information network, satellite network is a crucial part, in which problems caused by the dynamics are eager to be solved. To investigate those problems, this paper proposed an integrated space-ground information network simulation platform with STK(Satellite Tool Kit), Mininet and ONOS(Open Network Operating System) to simulate SDN(Software Defined Network) enabled networking devices. We designed a 3-layer(GEO/MEO/LEO) Walker constellation, a topology construction algorithm depending on available times of ISLs(inter-satellite links) and a routing algorithm considering both the processing delay and transmission delay. The simulation results show that the proposed topology construction algorithm could provide a relatively stable topology and reduce the computational resource consumption and the routing algorithm could control the delay of path to improve the quality of service. Indeed, the platform can support the simulation of integrated space-ground network with a good performance in solving problems caused by the dynamics of the satellite network.



中文翻译:

基于SDN的综合地空信息网络仿真平台研究。

随着社会的发展,地面通信技术难以满足随时随地通信的需求。结果,将卫星与地面站连接起来以提供无缝和有效的全球通信的综合空地信息网络,正成为未来通信中最重要和最有潜力的网络之一。在综合的地面对地面信息网络中,卫星网络是至关重要的部分,其中迫切需要解决由动力学引起的问题。为了研究这些问题,本文提出了一个集成的空地信息网络仿真平台,该平台使用STK(卫星工具套件),Mininet和ONOS(开放网络操作系统)来仿真支持SDN(软件定义网络)的联网设备。我们设计了一个3层(GEO / MEO / LEO)Walker星座,根据ISL(卫星间链路)的可用时间构造了一种拓扑构造算法,并同时考虑了处理延迟和传输延迟。仿真结果表明,提出的拓扑构造算法可以提供相对稳定的拓扑结构,减少计算资源的消耗,而路由算法可以控制路径的时延,从而提高服务质量。实际上,该平台可以在解决由卫星网络动力学引起的问题方面具有良好的性能,从而支持集成的空间-地面网络的仿真。取决于ISL(卫星间链路)的可用时间的拓扑构造算法和同时考虑处理延迟和传输延迟的路由算法。仿真结果表明,提出的拓扑构造算法可以提供相对稳定的拓扑结构,减少计算资源的消耗,而路由算法可以控制路径的时延,从而提高服务质量。实际上,该平台可以在解决由卫星网络动力学引起的问题方面具有良好的性能,从而支持集成的空间-地面网络的仿真。取决于ISL(卫星间链路)的可用时间的拓扑构造算法和同时考虑处理延迟和传输延迟的路由算法。仿真结果表明,提出的拓扑构造算法可以提供相对稳定的拓扑结构,减少计算资源的消耗,而路由算法可以控制路径的时延,从而提高服务质量。实际上,该平台可以在解决由卫星网络动力学引起的问题方面具有良好的性能,从而支持集成的空间-地面网络的仿真。仿真结果表明,提出的拓扑构造算法可以提供相对稳定的拓扑结构,减少计算资源的消耗,而路由算法可以控制路径的时延,从而提高服务质量。实际上,该平台可以在解决由卫星网络动力学引起的问题方面具有良好的性能,从而支持集成的空间-地面网络的仿真。仿真结果表明,提出的拓扑构造算法可以提供相对稳定的拓扑结构,减少计算资源的消耗,而路由算法可以控制路径的时延,从而提高服务质量。实际上,该平台可以在解决由卫星网络动力学引起的问题方面具有良好的性能,从而支持集成的空间-地面网络的仿真。

更新日期:2021-01-25
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