基于DTN的复杂深空通信网络拓扑分析  

Topology Analysis of Complex Deep-Space Communication Network Based on DTN

作　　者：余果 董振兴[1,2] 赵蔚宸 朱岩 YU Guo;DONG Zhen-xing;ZHAO Wei-chen;ZHU Yan(Key Laboratory of Electronics and Information Technology for Space Systems,Chinese Academy of Sciences,Beijing 100190,China;National Space Sciences Center,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Science,Beijing 100049,China)

机构地区：[1]中国科学院复杂航天系统电子信息技术重点实验室,北京100190 [2]中国科学院国家空间科学中心,北京100190 [3]中国科学院大学,北京100049

出　　处：《计算机仿真》2021年第11期53-57,128,共6页Computer Simulation

基　　金：中国科学院战略性先导科技专项(XDA15014603)。

摘　　要：针对当前延迟/中断容忍网络研究中复杂深空通信场景下网络评估的不足,提出了一种复杂深空通信网络评价方法。方法以网络性能及服务能力为评价指标,对中科院空间中心新提出的复杂深空通信网络——通用行星际通信网络进行网络拓扑分析。先从网络可通信时间、通信容量和网络时延等方面分析得出综合性能最优的网络拓扑,再从网络通信容量和中继节点存储器容量等方面分析网络的服务能力,结果表明上述网络能够满足"好奇号"火星探测的任务需求,证实了复杂深空通信网络评价方法的有效性,为以复杂网络为场景的延迟/中断容忍网络研究提供了网络评估依据。Aiming at the deficiency of network evaluation in complex deep space communication scenario in the current research of delay/interrupt tolerant network, a complex deep space communication network evaluation method is proposed. This method took the network performance and service ability as the evaluation indexes, and analyzed the network topology of the complex deep-space communication network, universal interplanetary communication network, recently proposed by National Space Science Center, Chinese Academy of Sciences. Firstly, the network topology with the best comprehensive performance was obtained by analyzing the communicable time, communication capacity and network delay. Then the service ability of the network was analyzed from the aspects of network communication capacity and memory capacities relay nodes. The results show that the network can meet the mission requirements of Mars exploration of Curiosity. Therefore, the evaluation method of complex deep-space communication network is effective and even provides a basis of network evaluation for the research of delay/interrupt tolerant network in complex network scenarios.

关 键 词：延迟/中断容忍网络 复杂深空通信网络 网络拓扑 网络评价方法 

分 类 号：V19[航空宇航科学与技术—人机与环境工程] TN915.02[电子电信—通信与信息系统]