空天地通信网络中物理层安全技术综述

doi:10.11959/j.issn.1000-0801.2020263

摘要/Abstract

摘要：

空天地一体化通信网络是未来无线通信的发展趋势，其固有的广播特性和广阔的覆盖区域，将导致网络通信系统面临严重的安全威胁。如何保证空天地通信网络的安全性是一个亟待解决的问题。物理层安全技术作为一种有效的安全手段，在无线通信领域受到越来越多的关注。介绍了物理层安全的基础以及空天地通信信道模型，并对物理层安全中常见的窃听编码、波束成形、人工噪声、中继协作干扰和物理层密钥加密等技术进行了介绍和总结，最后提出了空天地通信网络中物理层安全面临的挑战和未来的发展趋势。

关键词: 空天地通信网络, 物理层安全, 窃听编码, 波束成形和人工噪声, 中继协作干扰, 物理层密钥加密

Abstract:

Space-air-ground communication and networks are the trend of wireless communication in the future.Because of its inherent broadcast nature and wide coverage,its communication and network systems will face serious security problems.How to ensure the security of space-air-ground communication and networks is an urgent problem to be solved.As an effective means of security,physical layer security technology has attracted more and more attentions.The basis of physical layer security and the channel model of space-air-ground communication and networks were introduced,and then the common technologies in physical layer security were introduced and summarized,such as wiretap coding,beamforming and artificial noise,relay cooperation interference and physical layer key generation,finally the challenges and future development trend of physical layer security in space-air-ground communication and networks were proposed.

Key words: air-space-ground communication and networks, physical layer security, wiretap coding, beamforming and artificial noise, relay cooperation interference, physical layer key generation

中图分类号:

TP393

闫富朝,刘怡良,韩帅,孟维晓. 空天地通信网络中物理层安全技术综述[J]. 电信科学, 2020, 36(9): 1-13.

Fuchao YAN,Yiliang LIU,Shuai HAN,Weixiao MENG. A survey of physical layer security in space-air-ground communication and networks[J]. Telecommunications Science, 2020, 36(9): 1-13.

图/表 4

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频段	频率范围/GHz	卫星业务
VHF	0.1～0.3	气象卫星等
UHF	0.3～1.0	导航、定位和气象卫星等
L	1.0～2.0	卫星定位、卫星通信等
S	2.0～4.0	卫星通信、气象雷达等
C	4.0～8.0	卫星固定业务等
X	8.0～12.0	雷达和卫星通信等
Ku	12.0～18.0	卫星固定业务及直播星业务等
K	18.0～27.0	卫星电视和广播等
Ka	27.0～40.0	高速卫星、DTH等