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 …
multi-hop decode-and-forward (DF) relay networks. In the presence of an eavesdropper, we …
Exploiting direct links for physical layer security in multiuser multirelay networks
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 …
networks, where the communication from M users to the base station is assisted by direct …
Joint beamforming and power allocation for secrecy in peer-to-peer relay networks
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 …
network for amplify-and-forward (AF) protocol, where a secure user and other unclassified …
Optimal power allocation for secure multicarrier relay systems
We study power allocation for secrecy rate maximization in a multicarrier decode-and-
forward relay system, where an eavesdropper exists. We consider three transmission …
forward relay system, where an eavesdropper exists. We consider three transmission …
Secrecy capacity enhancement with distributed precoding in multirelay wiretap systems
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 …
eavesdropper is present. Distributed precoding through multiple relay nodes can be used to …
Outage constrained secrecy throughput maximization for DF relay networks
In this paper, we provide a comprehensive study of secrecy transmission in decode-and-
forward (DF) relay networks subjected to slow fading. With only channel distribution …
forward (DF) relay networks subjected to slow fading. With only channel distribution …
Optimal power allocation for multiuser secure communication in cooperative relaying networks
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 …
of users in the presence of one eavesdropper. We assume that there are no source-user …
Decode-and-forward relay beamforming for secrecy with finite-alphabet input
S Vishwakarma, A Chockalingam - IEEE communications letters, 2013 - ieeexplore.ieee.org
In this letter, we compute the secrecy rate of decode-and-forward (DF) relay beamforming
with finite input alphabet of size M. Source and relays operate under a total power constraint …
with finite input alphabet of size M. Source and relays operate under a total power constraint …
Generalized relay selection for improved security in cooperative DF relay networks
In this letter, a generalized multi-relay selection scheme is proposed to improve the security
in a cooperative relay network. Assuming that only the statistical channel state information of …
in a cooperative relay network. Assuming that only the statistical channel state information of …
Joint cooperative beamforming, jamming, and power allocation to secure AF relay systems
HM Wang, F Liu, M Yang - IEEE Transactions on Vehicular …, 2014 - ieeexplore.ieee.org
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 …
security of a wireless transmission in the presence of passive eavesdroppers. However, due …