Wireless networks are increasingly being employed to transfer highly sensitive information.
Due to the broadcast nature of wireless channels, security issues have been taken as a …

Jamming emits white Gaussian noise that causes interference to both the legitimate receiver
and eavesdropper. It has been an effective method for improving physical-layer security in …

Friendly jamming is an unconventional approach to secure wireless communications.
Specifically, a friendly jammer transmits jamming signals to an eavesdropper while a …

Signal interference and packet collisions are typically viewed as negative factors that hinder
wireless communication networks. When security is the primary concern, signal interference …

Security has always played a critical role in wireless cooperative communication systems
design. Eavesdropping and jamming are two common threats to the information security in …

This article provides a comprehensive overview on jamming strategies in the physical layer
for securing wireless communications. As a complement to traditional cryptography-based …

In this paper, we enhance physical layer security for downlink heterogeneous networks by
using friendly jammers and full-duplex users. The jammers are selected to transmit jamming …

Energy efficient secure communication in wireless networks in the presence of
eavesdroppers is considered. For a secure transmission to the destination, a set of …

This paper studies the secrecy rate maximization problem of a secure wireless
communication system in the presence of multiple eavesdroppers. The security of the …

In this article, we investigate the physical layer security for a wireless communication system
consisting of a base station (BS) and a user (U) in the face of an eavesdropper (E). A friendly …