计算机科学与探索2018，Vol.12Issue(6)：918-927,10.DOI:10.3778/j.issn.1673-9418.1710015
基于SDN和接触图的空间信息网络路由机制
Routing Mechanism for Space Information Network Based on SDN and Contact Graph
摘要
Abstract
Space information network has many characteristics,such as heterogeneous network,time-varying topol-ogy, limited storage and computing capability of network nodes, and tedious maintenance and upgrading of space equipment and so on. It means that the solutions to large space-time span network architecture, dynamic network routing and other issues of space information network are badly desired.Thus,this paper devises a routing mecha-nism for space information network based on SDN(software defined networking)and contact graph.Firstly,aiming for the problems of heterogeneous network and tedious maintenance and upgrading of space equipment,this paper introduces SDN data control and independence to set the network architecture.Then,according to the cyclical time-varying topology of the space information network, this paper proposes a pre-computed multipath routing mecha-nism and a dynamic response routing strategy based on contact graph. Simulation results prove that the proposed routing mechanism can enhance the rate of data transmission and the capability of dealing with network failures, thus,it is feasible and effective.关键词
空间信息网络/软件定义网络/接触图/路由Key words
space information network/software defined networking/contact graph/routing分类
信息技术与安全科学引用本文复制引用
朱小茹,王兴伟,张爽,黄敏..基于SDN和接触图的空间信息网络路由机制[J].计算机科学与探索,2018,12(6):918-927,10.基金项目
The National Natural Science Foundation of China under Grant No.61572123(国家自然科学基金) （国家自然科学基金）
the National Science Founda-tion for Distinguished Young Scholars of China under Grant No.71325002(国家杰出青年科学基金) （国家杰出青年科学基金）
the MoE and ChinaMobile Joint Research Fund under Grant No.MCM20160201(教育部-中国移动科研基金). （教育部-中国移动科研基金）
