Exploiting direct links for physical layer security in multiuser multirelay networks

L Fan, N Yang, TQ Duong, M Elkashlan… - IEEE Transactions …, 2016 - ieeexplore.ieee.org
We present two physical layer secure transmission schemes for multiuser multirelay
networks, where the communication from M users to the base station is assisted by direct …

Secure multiuser communications in multiple amplify-and-forward relay networks

L Fan, X Lei, TQ Duong, M Elkashlan… - IEEE Transactions …, 2014 - ieeexplore.ieee.org
This paper proposes relay selection to increase the physical layer security in multiuser
cooperative relay networks with multiple amplify-and-forward relays, in the presence of …

Optimal power allocation for physical layer security in multi-hop DF relay networks

JH Lee - IEEE Transactions on Wireless Communications, 2015 - ieeexplore.ieee.org
In this paper, we consider secure communications of one source-destination pair in wireless
multi-hop decode-and-forward (DF) relay networks. In the presence of an eavesdropper, we …

Two-stage relay selection for enhancing physical layer security in non-orthogonal multiple access

Y Feng, S Yan, C Liu, Z Yang… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
In this paper, we examine the physical layer security of a cooperative relay network where
two source-destination pairs communicate through a decode-and-forward (DF) relay in the …

Secrecy capacity enhancement with distributed precoding in multirelay wiretap systems

H Long, W Xiang, Y Zhang, Y Liu… - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
The secrecy capacity of relay communications is investigated in this paper, where an
eavesdropper is present. Distributed precoding through multiple relay nodes can be used to …

Secure transmission for multiuser relay networks

SI Kim, IM Kim, J Heo - IEEE Transactions on Wireless …, 2015 - ieeexplore.ieee.org
We investigate secure transmission for multiuser relay networks, where the undesired users
who are not selected for data reception may overhear the source message as …

Secure communication in multiple relay networks through decode-and-forward strategies

R Bassily, S Ulukus - Journal of Communications and Networks, 2012 - ieeexplore.ieee.org
In this paper, we study the role of cooperative relays to provide and improve secure
communication rates through decode-and-forward (DF) strategies in a full-duplex multiple …

Physical layer security in cooperative amplify‐and‐forward relay networks over mixed Nakagami‐m and double Nakagami‐m fading channels: performance …

A Pandey, S Yadav - IET Communications, 2020 - Wiley Online Library
The authors investigate the secrecy performance of a cooperative relaying network, wherein
a fixed source communicates with a fixed destination via an amplify‐and‐forward mobile …

Optimal power allocation for multiuser secure communication in cooperative relaying networks

TQ Duong, TM Hoang, C Kundu… - IEEE Wireless …, 2016 - ieeexplore.ieee.org
We consider a cooperative relaying network in which a source communicates with a group
of users in the presence of one eavesdropper. We assume that there are no source-user …

Secrecy outage of dual-hop regenerative multi-relay system with relay selection

C Kundu, S Ghose, R Bose - IEEE Transactions on Wireless …, 2015 - ieeexplore.ieee.org
Relay selection is considered to enhance the secrecy of a dual-hop regenerative multi-relay
system with an eavesdropper. Without assuming perfect decoding at the relays, the secrecy …