Results 41 to 50 of about 359 (162)
Securing Relay Networks with Artificial Noise: An Error Performance-Based Approach
Entropy, 2017 We apply the concept of artificial and controlled interference in a two-hop relay network with an untrusted relay, aiming at enhancing the wireless communication secrecy between the source and the destination node.
Ying Liu +3 more
doaj +1 more source
IET Communications, 2022 In this paper, a cooperative orthogonal frequency division multiplexing system with multiple untrusted amplify‐and‐forward relays is considered. Since there exists no direct link between source and user because of the shadowing effect, a positive system ...
Yifeng Jin +4 more
doaj +1 more source
Successive relaying secure transmission scheme based on inter-relay interference cancellation
Tongxin xuebao, 2017 A secure scheme based on inter-relay interference cancellation was proposed to solve untrusted relay eavesdropping problem in successive relaying systems.First inter-relay interference between trusted relay and untrusted relay was exploited as artificial
Yi ZOU, Kai-zhi HUANG, Xiao-lei KANG
doaj +2 more sources
Cooperative Covert Communication With Transceiver Hardware Impairments
IEEE Open Journal of the Communications SocietyThis study investigates covert communication in the presence of a half-duplex amplify-and-forward (AF) relay, while accounting for transceiver hardware impairments. A cooperative jamming strategy and channel uncertainty are employed to achieve covertness.
Mohammad Reza Yari +2 more
doaj +1 more source
A novel secure relay selection strategy for energy-harvesting-enabled Internet of things
EURASIP Journal on Wireless Communications and Networking, 2018 In this article, we focus on the problem of relay selection for the cooperative cognitive radio-based Internet of things. In such systems, a pair of primary user devices (PUs) can only communicate with each other through a relay.
Yan Huo, Mi Xu, Xin Fan, Tao Jing
doaj +1 more source
IET Communications, 2021 The secrecy rate of two‐way untrusted relay networks with imperfect channel state information based on SWIPT is investigated when multiple relays harvest energy from two sources.
Dayong Yang +3 more
doaj +1 more source
High-Speed Measurement-Device-Independent Quantum Key Distribution with Integrated Silicon Photonics
Physical Review X, 2020 Measurement-device-independent quantum key distribution (MDI QKD) removes all detector side channels and enables secure QKD with an untrusted relay.
Kejin Wei +14 more
doaj +1 more source
Noiseless Linear Amplifiers in Entanglement-Based Continuous-Variable Quantum Key Distribution
Entropy, 2015 We propose a method to improve the performance of two entanglement-based continuous-variable quantum key distribution protocols using noiseless linear amplifiers. The two entanglement-based schemes consist of an entanglement distribution protocol with an
Yichen Zhang +6 more
doaj +1 more source
Covertness and Secrecy Study in Untrusted Relay-Assisted D2D Networks
IEEE Internet of Things Journal, 2023 Abstract This article investigates the covertness and secrecy of wireless communications in an untrusted relay-assisted device-to-device (D2D) network consisting of a full-duplex base station (BS), a user equipment (UE), and an untrusted relay \(R\). For the covertness, we attempt to prevent Willie from detecting the very existence of communications ...
Ranran Sun +4 more
openaire +3 more sources
Secure Decentralized Key Relaying via Random Walks in Dynamic Semi‐Trusted QKD Networks
Advanced Quantum Technologies, Volume 9, Issue 8, August 2026.Quantum Key Distribution (QKD) provides point‐to‐point, information‐theoretically secure session keys, but distance limitations require trusted relays between remote parties. Can quantum keys be relayed without trusting every intermediate node or depending on a central controller?
Sergejs Kozlovičs +3 more
wiley +1 more source