This paper investigates the physical-layer security of a multiuser peer-to-peer (MUP2P) relay
network for amplify-and-forward (AF) protocol, where a secure user and other unclassified …

This paper studies the effect of outdated channel state information on relay selection for a
secure amplify‐and‐forward relay network. In the considered system, one of the multiple …

Physical layer security has recently attracted considerable attention in the context of
information‐theoretic point of view. In this paper, we investigate relay selection schemes for …

In this paper, we first propose a joint user and relay selection (JURS) scheme to enhance
physical layer security in a multi-user multi-relay network, where the best pair of the user and …

We investigate the impact of cochannel interference on the security performance of multiple
amplify-and-forward (AF) relaying networks, where N intermediate AF relays assist the data …

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, we address the security of a two-way relay network in the presence of an
eavesdropper, where each node is only equipped with single antenna. We propose two …

We study power allocation for secrecy rate maximization in a multicarrier decode-and-
forward relay system, where an eavesdropper exists. We consider three transmission …

Relay assisted communication helps to extend the transmission coverage area. In more
realistic scenarios, the available relays are untrusted, which try to decode the confidential …

In this paper, we investigate the secrecy performance of multiuser dual-hop relay networks
where a base station (BS) communicates with multiple legitimate users through the …