Results 1 to 10 of about 323 (144)
Joint Resource Allocation in Secure OFDM Two-Way Untrusted Relay System [PDF]
Sensors, 2022 The security issue of wireless communication is a common concern because of its broadcast nature, especially when the relay becomes an eavesdropper. In the orthogonal frequency division multiplexing (OFDM) relay system, when the relay is untrusted, the ...
Yifeng Jin +4 more
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Cooperation With an Untrusted Relay: A Secrecy Perspective [PDF]
IEEE Transactions on Information Theory, 2010 We consider the communication scenario where a source-destination pair wishes to keep the information secret from a relay node despite wanting to enlist its help. For this scenario, an interesting question is whether the relay node should be deployed at all. That is, whether cooperation with an untrusted relay node can ever be beneficial.
Aylin Yener
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Secure Transmission for Simultaneous Wireless Information and Power Transfer in AF Untrusted Relay Networks [PDF]
Sensors, 2018 This paper investigates secure communications of energy harvesting untrusted relay networks, where the destination assists jamming signal to prevent the untrusted relay from eavesdropping and to improve the forwarding ability of the energy constrained ...
Hui Shi +4 more
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On Security Performance of SWIPT Multi-User Jamming Based on Mixed RF/FSO Systems with Untrusted Relay [PDF]
SensorsThis paper presents research on the security performance of a multi-user interference-based mixed RF/FSO system based on SWIPT untrusted relay. In this work, the RF and FSO channels experience Nakagami-m fading distribution and Málaga (M) turbulence ...
Xingyue Guo +3 more
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Two-Hop Secure Communication Using an Untrusted Relay
EURASIP Journal on Wireless Communications and Networking, 2009 We consider a source-destination pair that can only communicate through an untrusted intermediate relay node. The intermediate node is willing to employ a designated relaying scheme to facilitate reliable communication between the source and the ...
Xiang He, Aylin Yener
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Impact of Outdated CSI on the Secure Communication in Untrusted In-Band Full-Duplex Relay Networks
IEEE Access, 2022 To provide reliable connectivity in recent and future wireless communication systems, it is necessary to deploy several relay nodes. Further, a full-duplex (FD) technique has been in the spotlight since it can significantly improve spectral efficiency ...
Jin-Taek Lim, Taehoon Kim, Inkyu Bang
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Physical Layer Security in Cognitive Untrusted Relay Networks
IEEE Access, 2018 In this paper, we consider the secure communications in a cognitive untrusted relay network, where the secondary source intends to communicate with a secondary destination through an untrusted relay in the presence of the direct source-destination link ...
Dechuan Chen +4 more
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Cooperative Secure Transmission in the Presence of Untrusted Relay [PDF]
International Journal of Distributed Sensor Networks, 2016 Considering a nonregenerative untrusted relay network, we investigate three different secure transmission strategies, for example, noncooperative strategy, conventional amplify-and-forward (AF) strategy, and cooperative jamming (CJ) strategy.
Dechuan Chen +4 more
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Secure Physical Layer Network Coding versus Secure Network Coding [PDF]
Entropy, 2021 When a network has relay nodes, there is a risk that a part of the information is leaked to an untrusted relay. Secure network coding (secure NC) is known as a method to resolve this problem, which enables the secrecy of the message when the message is ...
Masahito Hayashi
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Security-Aware Relaying Scheme for Cooperative Networks With Untrusted Relay Nodes
IEEE Communications Letters, 2015 This paper studies the problem of secure transmission in dual-hop cooperative networks with untrusted relays, where each relay acts as both a potential helper and an eavesdropper. A security-aware relaying scheme is proposed, which employs the alternate jamming and secrecy-enhanced relay selection to prevent the confidential message from being ...
Li Sun, Pinyi Ren, QINGHE Du
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