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Multi-terminal networks with an untrusted relay [PDF]

2014 52nd Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2014
This paper investigates the impact of cooperation with an untrusted relay in multi-source multi-destination networks. The set up considered is one where the relay is the only means of communications due to the absence of direct links between the sources and the destinations.
Ahmed A. Zewail, Mohamed S. Nafea, Aylin Yener   +2 more
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Secrecy-Enhancing Design for Cooperative Downlink and Uplink NOMA With an Untrusted Relay

IEEE Transactions on Communications, 2020
We investigate a secrecy-enhancing design for cooperative downlink and uplink non-orthogonal multiple access (NOMA) transmissions with an untrusted relay.
Zhiguo Ding, Lu Lv
exaly   +2 more sources

Opportunistic Transmission of Nonregenerative Network With Untrusted Relay

IEEE Transactions on Vehicular Technology, 2015
In this paper, we consider an opportunistic transmission scheme of nonregenerative relay networks consisting of a source, a destination, and an untrusted relay, where the relay has a different security clearance from the source–destination pair. In this network, the information is transmitted through the direct link if the secrecy rate of the direct ...
MinChul Ju
exaly   +2 more sources

The Symmetric Two-Hop Channel with an Untrusted Relay

2018 International Symposium on Information Theory and Its Applications (ISITA), 2018
We study, using information-theoretic security methods, the so-called symmetric two-hop channel with an untrusted relay. In this model, a source wants to send its message reliably and securely to the destination through an honest but curious relay. The relay acts as a passive eavesdropper.
Shahab Ghasemi-Goojani, Panagiotis Papadimitratos   +1 more
openaire   +3 more sources

Relay Selection for Secure Successive AF Relaying Networks With Untrusted Nodes

IEEE Transactions on Information Forensics and Security, 2016
In this paper, the security aspect of an amplify-and-forward relaying network with untrusted relay nodes is considered. The untrusted nodes can help to forward the received signal and they may also try to decode such information, which can be regarded as potential eavesdroppers (Eves). To deal with such a challenging issue, a successive relaying scheme
Kah Chan` Teh, Kwok Hung Li
exaly   +2 more sources

Physical layer security based on NOMA and AJ for MISOSE channels with an untrusted relay

Future Generation Computer Systems, 2020
Physical layer security based on non-orthogonal multiple access (NOMA) and artificial jamming (AJ) is considered in a one-way amplify-and-forward (AF) relay network with an untrusted relay.
Heejung Yu, Il-Gu Lee
exaly   +2 more sources

Joint Power Allocation and Relay Selection Scheme in Multiple Untrusted Relay Networks

2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC), 2022
Untrusted relays might decode the information while forwarding it and lead to threaten the security of the system in some realistic scenarios. The aim of the paper is to maximize the secrecy performance, and therefore on the ground of the cooperative ...
W. Su, Rugui Yao, Ye Fan, Yi Xie, Nan Qi, Xiao-Ya Zuo   +5 more
semanticscholar   +2 more sources

Hybrid Trusted/Untrusted Relay-Based Quantum Key Distribution Over Optical Backbone Networks

IEEE Journal on Selected Areas in Communications, 2021
Quantum key distribution (QKD) has demonstrated a great potential to provide future-proofed security, especially for 5G and beyond communications.
Yuan Cao, Yong-Li Zhao, Jun Li, R. Lin, J. Zhang, Jia-Jia Chen   +5 more
semanticscholar   +2 more sources

Secure Relay Selection for Two Way Amplify-and-Forward Untrusted Relaying Networks

IEEE Transactions on Vehicular Technology, 2018
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 signals during their main relaying function. Thus, these untrusted relays are regarded as potential eavesdroppers, and the confidential signals are vulnerable.
Tamer Mekkawy, Nan Qi, Rugui YAO
exaly   +3 more sources

AN-Aided Relay-Selection Scheme for Securing Untrusted RF-EH Relay Systems

IEEE Transactions on Green Communications and Networking, 2017
Energy harvesting (EH) technology has imposed new constraints on the amount of time an energy-constrained relay node needs to use for EH and information forwarding. Moreover, EH techniques may increase vulnerability to eavesdropping, since a power receiver, as a potential eavesdropper, usually has a shorter access distance than an information receiver.
Al Dhahir Naofal, Kamel Tourki, Asma Mabrouk   +2 more
exaly   +3 more sources