软件定义可重构卫星网络系统研究

Research of Software-Defined Reconfigurable Satellite Network System

卫星网络通信系统在空间信息对抗和对地观测中越来越重要,它具有覆盖广的特性,并在许多区域成为提供通信服务和互联网接入的唯一手段。未来的卫星网络将完全是基于IP并支持多媒体互动服务的宽带多媒体卫星网络系统。本文探讨了软件定义可重构空间网络系统架构,将卫星网络的控制平面和数据平面分离,通过软件定义方式对卫星组网的全网资源进行统一管理和配置,从而实现空间网络的优化。阐述了OpenFlow交换机和控制器的设计原理,说明了网络可重构、路由选择和资源调度方法,进行网络时延与吞吐率等性能分析和仿真。

Satellite network communication system becomes more and more important.It has a wide coverage,broadcast and multicast capabilities,especially in the less developed areas,rural,sea area,the satellite may be the only means to provide communication services and Internet access.Satellite network communication system are becoming increasingly important in the future information warfare and spatial information confrontation.Future satellite network will be entirely broadband multimedia satellite network based IP and support broadband multimedia interactive service.This paper describes the architecture of software-defined reconfigurable satellite network（SDRSN） and the control plane and data plane of satellite network are separated.In software-defined reconfigurable satellite network,the whole network resource of satellite network can be overall managed and configured.The design principle of OpenFlow switch and controller are described,and the network reconfiguration,route selection and resource scheduling are described also.The performance analysis of network delay and throughput are carried out and network simulation is done.