空天通信网络关键技术综述

安建平; 李建国; 于季弘; 叶能

doi:10.12263/DZXB.20210029

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空天通信网络关键技术综述

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- 空天通信网络关键技术综述
- Key Technologies of Space-Air-Ground Communication Networks: A Survey
- 电子学报 2022年50卷第2期页码：470-479
- 作者机构：
  
  1.北京理工大学网络空间安全学院，北京 100081
  2.北京理工大学信息与电子学院，北京 100081
- 作者简介：
  
  [ "安建平男，1965年出生于山西省原平市.现为北京理工大学网络空间安全学院教授、博士生导师.主要研究方向为空天信息网络与安全、空间信号处理.E-mail: an@bit.edu.cn" ]
  [ "李建国男，1993年出生于黑龙江省佳木斯市.现为北京理工大学信息与电子学院博士.主要研究方向：太赫兹高速通信.E-mail: jianguoli@bit.edu.cn" ]
  [ "于季弘（通讯作者）男，1987年出生于河北秦皇岛.现为北京理工大学信息与电子学院教授、博士生导师.主要研究方向：空天通信、无源物联网.E-mail: jihong.yu@bit.edu.cn" ]
  [ "叶能男，1993年出生于浙江省绍兴市.现为北京理工大学网络空间安全学院预聘助理教授.主要研究方向：空天泛在通信技术、智能通信信号处理技术.E-mail: ianye@bit.edu.cn" ]
- 基金信息：
  
  国家自然科学基金(61901035;61620106001;62001030);科技部重点研发计划(2019YFB1803200)
- DOI：10.12263/DZXB.20210029
  中图分类号： TN927
- 收稿：2020-12-28，
  
  修回：2022-01-20，
  
  纸质出版：2022-02-25
- 稿件说明：
移动端阅览
安建平,李建国,于季弘等.空天通信网络关键技术综述[J].电子学报,2022,50(02):470-479.

AN Jian-ping,LI Jian-guo,YU Ji-hong,et al.Key Technologies of Space-Air-Ground Communication Networks: A Survey[J].ACTA ELECTRONICA SINICA,2022,50(02):470-479.
安建平,李建国,于季弘等.空天通信网络关键技术综述[J].电子学报,2022,50(02):470-479. DOI： 10.12263/DZXB.20210029.

AN Jian-ping,LI Jian-guo,YU Ji-hong,et al.Key Technologies of Space-Air-Ground Communication Networks: A Survey[J].ACTA ELECTRONICA SINICA,2022,50(02):470-479. DOI： 10.12263/DZXB.20210029.

摘要

伴随信息社会向网络化、泛在化、智能化持续发展，现有地面通信网络已经无法支持日益增长的宽带业务需求、泛在海量的物联接入需求、隐蔽可靠的安全传输需求.未来通信网络要求在全球范围内实现既纵深宽广又细致入微的全方位无线接入，其进一步演进亟需突破包括网络架构和空口技术等在内的底层技术.相比于地面通信网络，空天通信网络不受地形的限制，可实现包括海洋、森林、边远地区等的立体全覆盖，可在多维度多层次尺度实现全空间范围内的信息交互，将成为满足海量异构用户泛在连接需求的关键使能技术.本文综述了空天通信网络的关键技术，首先给出了空天通信网络现有系统及未来智慧社会业务的多元化应用场景，然后从空-天-地三网、物理-网络-应用三层、有效传输-资源管理-安全防护三域出发，给出了一种空天通信网络的整体架构.本文随后从组网与接入、物理层以及资源管理与切换等角度出发分别总结了关键技术.最后，本文指出了未来空天通信网络的技术发展挑战和趋势.

Abstract

With the information society continuously developing towards networking

ubiquity

and intelligence

the existing terrestrial communication network has been unable to supply the increasing demand for broadband services

ubiquitous access

and concealed and reliable transmission. The future communication network requires the realization of all-round wireless access. Its further evolution urgently needs to break through the underlying technologies including network architecture and air interface technology. Compared with the terrestrial communication networks

integrated space-air-ground communication networks can work independently of terrain

and can achieve full coverage including oceans

forests

remote areas

etc. In addition

the information interaction can also be achieved from multiple dimensions. The integrated space-air-ground communication will be one of the key technologies enabling the ubiquitous connection of enormous heterogeneous users. This paper summarizes the key technologies of aerospace communication networks. Firstly

we introduce the existing space-air-ground communication systems and the diversified application scenarios oriented for the future smart society. Secondly

an overall architecture of the integrated space-air-ground communication networks is presented from the perspectives of space-air-ground physical space

physical-network-application network structure

and effective transmission-resource management-security protection technical route. Subsequently

the key technologies are summarized such as networking and multiple access

physical layer and resource management

etc. Finally

the technical challenges and trends of future aerospace communication networks are pointed out.

关键词

Keywords

references

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