Wireless physical layer security
Wireless physical layer security
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DOI：
10.1073/pnas.1618130114
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发表时间：
2017-01-03
影响因子：
11.1
通讯作者：
Schaefer, Rafael F.
中科院分区：
文献类型：
--
作者：
Poor, H. Vincent;Schaefer, Rafael F.
无线网络中的安全性传统上被认为是与无线系统的物理无线电传输方面分开解决的问题。然而，随着新的网络体系结构的出现，这些网络体系结构不适合于传统的安全通信方法，例如数据加密，人们对无线电信道本身的物理特性提供通信安全性的潜力的兴趣增加。信息理论为研究这个问题提供了一个自然的框架，并且最近有相当多的研究致力于使用这个框架来更好地理解所谓的物理层在无线网络中提供安全性的基本能力。此外，这种方法在许多情况下也暗示了编码技术在实践中可以接近基本极限，以及用于其他安全任务（如认证）的技术。本文件概述了这些发展。
Security in wireless networks has traditionally been considered to be an issue to be addressed separately from the physical radio transmission aspects of wireless systems. However, with the emergence of new networking architectures that are not amenable to traditional methods of secure communication such as data encryption, there has been an increase in interest in the potential of the physical properties of the radio channel itself to provide communications security. Information theory provides a natural framework for the study of this issue, and there has been considerable recent research devoted to using this framework to develop a greater understanding of the fundamental ability of the so-called physical layer to provide security in wireless networks. Moreover, this approach is also suggestive in many cases of coding techniques that can approach fundamental limits in practice and of techniques for other security tasks such as authentication. This paper provides an overview of these developments.