Physical layer security in wireless networks: A tutorial

Document Type

Article

Publication Date

4-1-2011

Abstract

Wireless networking plays an extremely important role in civil and military applications. However, security of information transfer via wireless networks remains a challenging issue. It is critical to ensure that confidential data are accessible only to the intended users rather than intruders. Jamming and eavesdropping are two primary attacks at the physical layer of a wireless network. This article offers a tutorial on several prevalent methods to enhance security at the physical layer in wireless networks. We classify these methods based on their characteristic features into five categories, each of which is discussed in terms of two metrics. First, we compare their secret channel capacities, and then we show their computational complexities in exhaustive key search. Finally, we illustrate their security requirements via some examples with respect to these two metrics. © 2011 IEEE.

Publication Source (Journal or Book title)

IEEE Wireless Communications

First Page

66

Last Page

74

This document is currently not available here.

Share

COinS