The broadcast nature of wireless communications makes the propagation medium
vulnerable to security attacks such as eavesdropping and jamming from adversarial or …

Despite its numerous advantages in enhancing wireless systems' reliability and secrecy
performance, the implementation of reconfigurable intelligent surfaces (RIS) is faced with …

In this study, the authors consider the physical‐layer security problem in the relay networks.
The relay nodes are employed not only to aid the information transmission but also to …

In a cooperative wireless network, we exploited node cooperation for achieving physical
layer based security. In this paper, the case of one source-destination pair with the help of …

Secure relay and jammer selection for physical-layer security is studied in a wireless
network with multiple intermediate nodes and eavesdroppers, where each intermediate …

In this paper, we consider the problem of secure communications for a four-node system
consisting of one source, one destination, one eavesdropper, and one helper. We …

This paper investigates the physical layer security for a distributed antenna system, where a
base station (BS) equipped with multiple distributed antennas transmits signals to a …

1 A wireless communication network is considered, consisting of a source, a destination and
an eavesdropper, each equipped with a single antenna. The communication is assisted by …

This study investigates the security of the two‐way relaying system with untrusty relay nodes.
Cooperative jamming schemes are considered for bi‐directional secrecy communications …

In this paper, we propose a two-phase cooperative transmission strategy using decode-and-
forward (DF) relaying and cooperative null-steering beamforming (CN-SB) to overcome the …