Wireless physical layer security

H. Vincent Poor, Rafael F. Schaefer

Research output: Contribution to journalArticle

92 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)19-26
Number of pages8
JournalProceedings of the National Academy of Sciences of the United States of America
Volume114
Issue number1
DOIs
StatePublished - Jan 3 2017

All Science Journal Classification (ASJC) codes

  • General

Keywords

  • Information theory
  • Security
  • Wireless networks

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