Results 31 to 40 of about 29,228 (228)

Secrecy Outage Probability of Network-Coded Cooperative Communication

open access: yesCoRR, 2014
We evaluate the secrecy performance of a multiple access cooperative network where the destination node is wiretapped by a malicious and passive eavesdropper. We propose the application of the network coding technique as an alternative to increase the secrecy at the destination node, on the top of improving the error performance of the legitimate ...
João Luiz Rebelatto   +4 more
openaire   +2 more sources

The impact of dual‐signal selection and multiple eavesdroppers on secrecy performance in cooperative‐relay systems

open access: yesIET Communications, 2022
This paper investigates the impact of a dual‐signal selection (i.e. selection of direct signal and relay signal) and multiple eavesdroppers on secrecy outage probability in cooperative‐relay systems over Nakagami fading channels.
Donghun Lee
doaj   +1 more source

Secure Multiuser Scheduling for Hybrid Relay-Assisted Wireless Powered Cooperative Communication Networks With Full-Duplex Destination-Based Jamming

open access: yesIEEE Access, 2021
In this paper, we investigate secure communication in a hybrid relay (HR)-assisted wireless powered cooperative communication network (WPCCN), where an eavesdropper tries to intercept the data transmitted by a source user and the HR simultaneously.
Xiaohui Shang   +4 more
doaj   +1 more source

Secrecy Outage Probability of SWIPT-OFDMA Schemes with Transmit Antenna Selection

open access: yes2023 31st Signal Processing and Communications Applications Conference (SIU), 2023
This study examines the wireless communications secrecy performance of multi-user (MU) simultaneous wireless information and power transfer (SWIPT) scheme employing transmit antenna selection (TAS) and maximal-ratio combining (MRC). In order to address the user scheduling requirement of MU-SWIPT scheme, orthogonal frequency-division multiple access ...
Coskun, Ahmet Faruk   +2 more
openaire   +3 more sources

A Study of Physical Layer Security in SWIPT-Based Decode-and-Forward Relay Networks with Dynamic Power Splitting

open access: yesSensors, 2021
In this paper, we study the physical layer security for simultaneous wireless information and power transfer (SWIPT)-based half-duplex (HD) decode-and-forward relaying system.
Van-Duc Phan   +3 more
doaj   +1 more source

On the Zero-Outage Secrecy-Capacity of Dependent Fading Wiretap Channels

open access: yes, 2022
It is known that for a slow fading Gaussian wiretap channel without channel state information at the transmitter and with statistically independent fading channels, the outage probability of any given target secrecy rate is non-zero, in general.
Pin-Hsun Lin   +2 more
core   +1 more source

Probability of Secrecy Outage in Cognitive Radio Networks over Rician-Fading Channels

open access: yes, 2016
In Rician-fading scenario, cognitive radio networks (CRNs) with a source in a secondary system transmitting its confidential information to a legitimate destination in the presence of an eavesdropper, are considered in this paper.
Jiang, H., Pan, G., Zhang, J.
core   +3 more sources

Secure performance analysis of relay systems with multi-relay and multi-user selection

open access: yesDianxin kexue, 2019
The exact expressions for the non-zero secrecy capacity probability,secrecy outage probability of AF relay systems with transmit antenna selection and receive maximal ratio combining and its asymptotic secrecy outage probability at high signal to noise ...
Tingjie REN, Guangqiu LI, Ying CHENG
doaj   +2 more sources

Joint 3D Beamforming and Trajectory Design for UAV-Enabled Mobile Relaying System

open access: yesIEEE Access, 2019
The goal of this paper is to investigate the security performance of the multi-antenna unmanned aerial vehicle (UAV)-enabled mobile relaying system with a multi-antenna destination in the presence of a multi-antenna eavesdropper.
Quansheng Yuan   +3 more
doaj   +1 more source

Physical-Layer Security Enhancement via Relay-Aided D2D Communications Underlaying Cellular Networks

open access: yesIEEE Open Journal of the Communications Society, 2020
In this paper, we propose a relay-assisted device-to-device (D2D) communication as an underlay in a cellular network, where two sequential best relay nodes based on different selection criteria are chosen.
Jules M. Moualeu, Telex M. N. Ngatched
doaj   +1 more source

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