DTN协议在空间信息网络中的应用研究

发布时间：2018-06-01 12:44

本文选题：空间信息网络 + 空间网络互联业务　；参考：《航天器工程》2015年06期

【摘要】：针对空间信息网络具有的子网异构、拓扑易变、链路传输延迟大、误码率高等特点,研究了适用于其中的延迟/中断容忍网络(Delay/Disruption Tolerant Network,DTN)协议。首先阐述了CCSDS DTN协议应用于空间网络互联服务的体系结构,介绍了当前支撑空间DTN应用的Bundle、LTP等多种主要的空间信息传输协议及其特性。针对我国空间信息网络的特点,分析了我国现阶段对CCSDS DTN协议体系的应用需求,提出了适于我国实际的基于CCSDS DTN的空间信息网络协议体系设计构想,同时给出了火星探测场景实例;最后搭建了网络实验仿真平台,用以验证分析DTN相关协议在空间通信中的有效性和优越性。仿真效果直观可信,可为我国空间信息网络建设提供仿真依据和理论参考。
[Abstract]:In view of the heterogeneity of the subnet, the changeable topology, the large transmission delay and the high bit error rate of spatial information network, the delay / interrupt tolerance network (delay / interrupt tolerance Tolerant Network DTNP) protocol is studied in this paper. Firstly, this paper introduces the architecture of CCSDS DTN protocol applied to spatial network interconnection service, and introduces several main spatial information transmission protocols, such as BundleLTP, which support spatial DTN applications, and its characteristics. According to the characteristics of spatial information network in our country, this paper analyzes the application requirement of CCSDS DTN protocol system in our country at present, and puts forward the design conception of spatial information network protocol system based on CCSDS DTN, which is suitable for our country. Finally, a network experiment simulation platform is built to verify the effectiveness and superiority of DTN protocol in space communication. The simulation results are intuitionistic and credible, which can provide simulation basis and theoretical reference for the construction of spatial information network in China.
【作者单位】：山东航天电子研究所;
【基金】：国家高新技术研究发展计划(863计划)(2015AA7015087)
【分类号】：TN927

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