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 …

The idea of multiuser (nodes) cooperation is an efficient way to improve the physical-layer
security of a wireless transmission in the presence of passive eavesdroppers. However, due …

In this paper, we investigate secure communications in two-hop wireless relaying networks
with one eavesdropper. To prevent the eavesdropper from intercepting the source message …

In this paper, we propose a hybrid cooperative beamforming and jamming scheme to
enhance the physical-layer security of a single-antenna-equipped two-way relay network in …

We consider a cooperative wireless network in the presence of one or more eavesdroppers,
and exploit node cooperation for achieving physical (PHY) layer based security. Two …

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 …

This letter studies cooperative secure beamforming for amplify-and-forward (AF) relay
networks in the presence of multiple eavesdroppers. Under both total and individual relay …

A wireless network with one source, one destination, one eavesdropper, and multiple
decode-and-forward relays is considered. A two-slot cooperative relaying scheme is …

This paper investigates the ergodic achievable secrecy rate (EASR) of multiple-antenna
amplify-and-forward relay systems, where one eavesdropper can wiretap the relay. To …

In this paper, a joint relay selection and power allocation (JRP) scheme is proposed to
enhance the physical layer security of a cooperative network, where a multiple antennas …