物联网学报 ›› 2020, Vol. 4 ›› Issue (3): 30-41.doi: 10.11959/j.issn.2096-3750.2020.00184

• 专题:智慧交通物联网 • 上一篇    下一篇

基于SDN的铁路系统空天地融合网络架构

滕颖蕾1,李鑫1,王剑2,蔡伯根2,宋梅1   

  1. 1 北京邮电大学,北京 100876
    2 北京交通大学,北京 100044
  • 修回日期:2020-08-06 出版日期:2020-09-30 发布日期:2020-09-07
  • 作者简介:滕颖蕾(1983- ),女,山东烟台人,博士,北京邮电大学教授,主要研究方向为超密集网络、边缘计算及人工智能、大规模MIMO、区块链、空天地融合网络等|李鑫(1997- ),女,安徽安庆人,北京邮电大学硕士生,主要研究方向为空天地融合网络、软件定义网络等|王剑(1978- ),男,山西隰县人,北京交通大学教授、电子信息工程学院副院长,主要研究方向为列车运行控制、卫星导航、智能交通等|蔡伯根(1966- ),男,江苏如皋人,博士,北京交通大学教授,主要研究方向为卫星定位导航理论及应用、列车运行控制、智能交通系统、多源信息融合、工业控制系统网络安全等|宋梅(1960- ),女,天津人,博士,北京邮电大学教授,主要研究方向为异构和认知网络中的资源分配、移动管理以及未来通信领域的其他技术
  • 基金资助:
    国家重点研发计划(2018YFB1201500);北京市自然科学基金资助项目(L171011);中国铁路总公司科技研究开发计划(J2018G004)

SDN enabled space-terrestrial integrated network architecture of railway system

Yinglei TENG1,Xin LI1,Jian WANG2,Bogen CAI2,Mei SONG1   

  1. 1 Beijing University of Posts and Telecommunications,Beijing 100876,China
    2 Beijing Jiaotong University,Beijing 100044,China
  • Revised:2020-08-06 Online:2020-09-30 Published:2020-09-07
  • Supported by:
    The National Key R&D Program of China(2018YFB1201500);The Beijing Natural Science Foundation(L171011);The Research and Development Plan of China Railway Corporation(J2018G004)

摘要:

针对列车通信网络制式单一、地理环境差、数据安全可靠传输难以得到保证的现状,调研铁路系统各业务的通信需求,提出一种基于软件定义网络(SDN,software defined network)和网络功能虚拟化(NFV,network functions virtualization)的铁路系统空天地融合网络体系架构。通过集中控制器管理底层铁路系统的物理设施,实现应用程序与物理基础设施的解耦,讨论了体系架构的设计细节,并对架构的协议需求、功能需求以及信息流等展开综述,给出空天地融合网络与其他单一制式网络覆盖的性能对比分析,并简要讨论了目前待解决的问题及解决方向。

关键词: 软件定义网络, 网络功能虚拟化, 网络融合, 空天地一体化网络

Abstract:

In view of the current situation that it is difficult to guarantee the safe and reliable transmission of data with the poor geographical environment in the single standard train communication network,the communication needs of each business of the railway system were investigated and a space-terrestrial integrated network architecture based on software defined network (SDN) and network functions virtualization (NFV) was proposed.By focusing on the controller to manage the physical facilities,the architecture realized decoupling application and physical infrastructure.The design of the architectural details and the requirements of the agreement for the architecture in the functional requirements and the information flow were discussed.In the end,the performance comparison between the space-terrestrial integrated network and other single-system network coverage was given,problems remaining to be solved and some feasible solutions faced by the space-terrestrial integrated network were briefly discussed.

Key words: software defined network (SDN), network functions virtualization (NFV), network convergence, space-terrestrial integrated network

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