Results 41 to 50 of about 104,178 (180)

General Secure Information Exchange Protocol for a Multiuser MIMO Relay Channel

open access: yesEntropy, 2019
Secure information exchange occurs in many recently emerging cooperative-based networks, such as 5G networks (especially those with a Device to Device architecture), the Internet of Things, and vehicular ad hoc networks. However, the existing information
Qiao Liu, Hui Li, Yong Wang
doaj   +1 more source

On the Secrecy Performance and Power Allocation in Relaying Networks With Untrusted Relay in the Partial Secrecy Regime [PDF]

open access: yesIEEE Transactions on Information Forensics and Security, 2020
Recently, three useful secrecy metrics based on the partial secrecy regime were proposed to analyze secure transmissions on wireless systems over quasi-static fading channels, namely: generalized secrecy outage probability, average fractional equivocation, and average information leakage.
Diana Pamela Moya Osorio   +2 more
openaire   +5 more sources

Cooperative rate splitting secure transmission with an untrusted user relay

open access: yes, 2023
Combining rate splitting (RS) with cooperative relay, cooperative RS (CRS) can reduce the interference and improve the sum rate of conventional RS networks.
Zhao, Nan   +5 more
core   +2 more sources

Channel Phase Based Secret Key Generation: Untrusted Relaying or Not? [PDF]

open access: yesAUT Journal of Modeling and Simulation
Compared to traditional cryptography methods, physical layer secret key generation (PLSKG) can be more efficient and well-suited for Internet-of-Things (IoT) owing to its lightweight nature and scalability.
Mohammadreza Keshavarzi   +3 more
doaj   +1 more source

Securing Relay Networks with Artificial Noise: An Error Performance-Based Approach

open access: yesEntropy, 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

Subcarrier‐pair based joint resource allocation for secure cooperative OFDM system with multiple untrusted AF relays

open access: yesIET 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

open access: yesTongxin 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

TD-SCDMA Relay Networks [PDF]

open access: yes, 2009
PhDWhen this research was started, TD-SCDMA (Time Division Synchronous Code Division Multiple Access) was still in the research/ development phase, but now, at the time of writing this thesis, it is in commercial use in 10 large cities in China ...
Yan, Sun
core   +4 more sources

Cooperative Covert Communication With Transceiver Hardware Impairments

open access: yesIEEE Open Journal of the Communications Society
This 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

open access: yesEURASIP 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

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