Results 21 to 30 of about 4,651 (205)

Rate Splitting in the Presence of Untrusted Users: Outage and Secrecy Outage Performances

open access: yesIEEE Open Journal of the Communications Society, 2022
In this contribution, a thorough investigation of the performance of rate splitting is conducted in terms of outage and secrecy outage for the simultaneous service to a near user and far user, where the latter attempts to overhear the message of the ...
Milad Abolpour   +3 more
doaj   +1 more source

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

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

Enhancing wireless security via optimal cooperative jamming [PDF]

open access: yes, 2012
In this work, we analyze the secrecy rate in a cooperative network, where a source node is assisted by relay nodes via cooperative jamming for delivering a secret message to the destination in the presence of an eavesdropper node.
Gurbuz, Ozgur   +3 more
core   +1 more source

Secrecy Cognitive Gain of Cognitive Radio Sensor Networks with Primary Outage Constraint

open access: yesInternational Journal of Distributed Sensor Networks, 2015
This paper studies the physical layer security issue for cognitive radio sensor networks (CRSNs) with primary outage constraint, for which a tractable framework is developed to analyze the secrecy performance for CRSNs related to the random channel ...
Hongyu Ma   +4 more
doaj   +1 more source

Secrecy performance of TAS/SC-based multi-hop harvest-to-transmit cognitive WSNs under joint constraint of interference and hardware imperfection [PDF]

open access: yes, 2019
In this paper, we evaluate the secrecy performance of multi-hop cognitive wireless sensor networks (WSNs). In the secondary network, a source transmits its data to a destination via the multi-hop relaying model using the transmit antenna selection (TAS ...
Duy, Tran Trung   +4 more
core   +1 more source

Cyber-Physical-Systems and Secrecy Outage Probability: Revisited

open access: yes, 2022
This paper technically explores the secrecy rate $Λ$ and a maximisation problem over the concave version of the secrecy outage probability (SOP) as $\mathop{{\rm \mathbb{M}ax}}\limits_{Δ} {\rm \; } \mathbb{P}\mathscr{r} \big( Λ\ge λ\big) $. We do this from a generic viewpoint even though we use a traditional Wyner's wiretap channel for our system model
openaire   +2 more sources

Secure D2D Communication in Large-Scale Cognitive Cellular Networks: A Wireless Power Transfer Model [PDF]

open access: yes, 2015
In this paper, we investigate secure device-to-device (D2D) communication in energy harvesting large-scale cognitive cellular networks. The energy constrained D2D transmitter harvests energy from multi-antenna equipped power beacons (PBs), and ...
Duong, TQ   +4 more
core   +2 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

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