通信学报 ›› 2020, Vol. 41 ›› Issue (8): 120-129.doi: 10.11959/j.issn.1000-436x.2020135

• 学术论文 • 上一篇    下一篇

基于位置的天地一体化网络路由寻址机制研究

李贺武1,2,刘李鑫1,2,刘君1,2,吴茜1,2   

  1. 1 清华大学网络科学与网络空间研究院,北京 100084
    2 北京信息科学与技术国家研究中心,北京 100084
  • 修回日期:2020-03-08 出版日期:2020-08-25 发布日期:2020-09-05
  • 作者简介:李贺武(1974- ),男,广东南海人,博士,清华大学副研究员,主要研究方向为无线移动网络、天地一体化信息网络|刘李鑫(1997- ),女,山东潍坊人,清华大学硕士生,主要研究方向为天地一体化信息网络|刘君(1982- ),女,山东济南人,博士,清华大学助理研究员,主要研究方向为天地一体化信息网络|吴茜(1978- ),女,湖北荆州人,博士,清华大学副研究员,主要研究方向为计算机网络体系结构、无线移动网络、天地一体化信息网络
  • 基金资助:
    国家重点研发计划基金资助项目(2018YFB1800301);清华大学自主科研基金资助项目(2019Z08QCX19);国家自然科学基金资助项目(61832013);国家自然科学基金资助项目(61902214)

Location based routing addressing mechanism of integrated satellite and terrestrial network

Hewu LI1,2,Lixin LIU1,2,Jun LIU1,2,Qian WU1,2   

  1. 1 Institute for Network Sciences and Cyberspace,Tsinghua University,Beijing 100084,China
    2 Beijing National Research Center for Information Science and Technology,Beijing 100084,China
  • Revised:2020-03-08 Online:2020-08-25 Published:2020-09-05
  • Supported by:
    The National Key Research and Development Program of China(2018YFB1800301);Tsinghua University Initiative Scientific Research Program(2019Z08QCX19);The National Natural Science Foundation of China(61832013);The National Natural Science Foundation of China(61902214)

摘要:

针对卫星高速移动导致的卫星网络内部及与地面网络间的连接关系不断变化的问题,提出了一种基于位置的天地一体化网络路由寻址机制——LA-ISTN。用户的IP地址携带其地理位置信息,在星间路由时,基于位置信息计算得到的路由方位选择最优的转发接口。仿真结果表明,相对于快照协议和OSPF路由协议,LA-ISTN显著降低了星上路由表存储开销,没有路由更新包交换开销和邻居通信开销;星上路由不依赖预测的链路连接关系,稳健性强,可保证网络时刻可用。

关键词: 位置, 寻址机制, 路由, 天地一体化网络

Abstract:

The ever-changing characteristics of the connection between the satellite network and the terrestrial network caused by the high-speed movement of the satellites have always been one of the most important problem that plagues the routing mechanism of the satellite network and integrated network.To address this problem,a location addressing based routing mechanism of integrated satellite and terrestrial network (LA-ISTN) was proposed.LA-ISTN exploited the user’s physical location in the user’s IP address to calculate the routing orientation.Based on the orientation,LA-ISTN could choose the best forward interface.Theoretical analysis and simulation experiments show that compared with snapshot protocol and OSPF routing protocol,LA-ISTN significantly reduces the route table storage overhead,with no routing updates cost caused by neighbor packet switching and communication.Inter-satellite route selection is not dependent on the prediction of link connection relations,with strong robustness,can always guarantee the network’s availability.

Key words: location, addressing mechanism, routing, integrated satellite and terrestrial network

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