Results 181 to 190 of about 319,021 (219)
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Characterization of untrusted relaying networks in the presence of an adversary jammer
Wireless Networks, 2019By considering an adversary jammer in a communication network, we investigate the secrecy performance of a cooperative wireless network comprised of a source, a destination and an untrusted amplify-and-forward relay. We assume that either the source or the destination, as well as the jammer are equipped with large-scale multiple antennas systems, while
Hamed Saedi +2 more
openaire +2 more sources
Covert Communication and Secure Transmission in the Presence of Multiple Antenna Untrusted Relay
2024 32nd International Conference on Electrical Engineering (ICEE)In this study, we investigate information-theoretical security and covert communication. In covert communication, our aim is communication via the source-relay-destination link, without noticing the existence of communication by the multiple antenna ...
Mohammadreza Yari +4 more
semanticscholar +1 more source
Secure cooperative untrusted-relay network with outdated CSI
2016 International Wireless Communications and Mobile Computing Conference (IWCMC), 2016This paper studies the secrecy performance of an untrusted amplify-and-forward relaying network where both the relaying and the direct links are used to convey the source's information. Since relays act as eavesdroppers, a source-based jamming technique is proposed to keep the source's message secret from these helper nodes.
Asma Mabrouk +2 more
openaire +2 more sources
Joint Beamforming Design for Secure Communications Over An IRS-Aided Untrusted Relay Network
IEEE Wireless Communications and Networking ConferenceIn this paper, a secure wireless communication system, where a multi-antenna access point (AP) sends confidential information to a single-antenna user with the help of an untrusted relay adopting amplify-and-forward (AF) protocol and an IRS, is ...
Chang Liu, Deli Qiao, Hai-Feng Qian
semanticscholar +1 more source
Covert and Secure Communications in UAV-Aided Untrusted Relay Systems
International Conference on Networking and Network ApplicationsThis paper studies the covert and secure communications in a UAV-aided untrust relay system composed of an unmanned aerial vehicle (UAV), a base station (BS), a user and a warden (Willie). The UAV collects data from underground users, and then uploads it
Kai Yang +7 more
semanticscholar +1 more source
International Conference on Optical Communications and Networks, 2021
This paper addresses the survivability issue by proposing a hybrid-trusted/untrusted-relay based protection strategy in QKD-ON. Simulation results show it performs well on service blocking rate and protection path construction rate.
Qin Zhang +5 more
semanticscholar +1 more source
This paper addresses the survivability issue by proposing a hybrid-trusted/untrusted-relay based protection strategy in QKD-ON. Simulation results show it performs well on service blocking rate and protection path construction rate.
Qin Zhang +5 more
semanticscholar +1 more source
Secure Beamforming for Full-Duplex MIMO Two-Way Untrusted Relay Systems
IEEE Transactions on Information Forensics and Security, 2020This paper focuses on a full-duplex multiple-input multiple-output two-way untrusted relay system, and investigates the optimal beamforming design of such system to maximize its secrecy sum rate (SSR) based on the physical layer security technology.
Shuang-Rui Zhao +4 more
semanticscholar +1 more source
Secure Power Allocation of Two-Way Relaying with an Untrusted Denoise-and-Forward Relay
2018 15th International Symposium on Wireless Communication Systems (ISWCS), 2018This paper proposes an secure transmit power allocation (STPA) scheme for a two-way denoise-and-forward (DNF) relaying network with the aim of maximizing the secrecy sum rate of the network. Here, the DNF relay could act not only as a forwarder but also a potential eavesdropper, i.e., an untrusted relay. First, the secure-rate-region of the two sources
Ruifeng Gao +4 more
openaire +1 more source
Impact of Outdated CSI on the Secrecy Performance of Wireless-Powered Untrusted Relay Networks
IEEE Transactions on Information Forensics and Security, 2020We investigate the effect of outdated channel state information (CSI) on the secrecy performance of wireless-powered untrusted relay networks, in which the relay is a potential eavesdropper.
Kisong Lee, Jin-Taek Lim, Hyun-Ho Choi
semanticscholar +1 more source
2020 IEEE International Conference on Communications Workshops (ICC Workshops), 2020
The Internet-of-Things (IoT) spans various applications in healthcare filed, from smart wearable or implantable sensors to remote monitoring of elderly, and medical device networking.
Mehdi Letafati +3 more
semanticscholar +1 more source
The Internet-of-Things (IoT) spans various applications in healthcare filed, from smart wearable or implantable sensors to remote monitoring of elderly, and medical device networking.
Mehdi Letafati +3 more
semanticscholar +1 more source