This paper proposes a multi-agent deep reinforcement learning-based buffer-aided relay
selection scheme for an intelligent reflecting surface (IRS)-assisted secure cooperative …

In this paper, we study an intelligent reflecting surface (IRS)-aided wireless secure
communication system, where an IRS is deployed to adjust its reflecting elements to secure …

In this paper, we propose a novel secure buffer-aided decode-and-forward relay selection
that amalgamates the benefits of the buffer-state-based relay selection, the max-ratio …

In this paper, we examine the physical layer security for cooperative wireless networks with
multiple intermediate nodes, where the decode-and-forward protocol is considered. We …

Reconfigurable intelligent surfaces (RISs) are recognized with great potential to strengthen
wireless security, yet the performance gain largely depends on the deployment location of …

In this letter, we investigate whether the use of artificial noise (AN) is helpful to enhance the
secrecy rate of an intelligent reflecting surface (IRS) assisted wireless communication …

Cooperative beamforming and jamming are two efficient schemes to improve the physical-
layer security of a wireless relay system in the presence of passive eavesdroppers …

In this paper, we present a comprehensive investigation on the secrecy performance of
opportunistic relay selection systems employing the decode-and-forward protocol over …

Cooperative communication can improve the performance of communication system under
multi‐path fading conditions by relaying. If there is an eavesdropper in communication …

This article studies secure communication in an Internet of Things (IoT) network, where the
confidential signal is sent by an active refracting reconfigurable intelligent surface (RIS) …