Results 21 to 30 of about 754 (214)

ZF-SIC Based Individual Secrecy in SIMO Multiple Access Wiretap Channel

open access: yesIEEE Access, 2017
In this paper, a decoding method of joint zero-forcing and successive interference cancellation (ZF-SIC) is put forward to assist the study of the individual secrecy in the quasi-static Rayleigh fading single-input multiple-output multiple access wiretap
Kaiwei Jiang   +4 more
doaj   +1 more source

On the performance of physical layer security in virtual full-duplex non-orthogonal multiple access system

open access: yesEURASIP Journal on Wireless Communications and Networking, 2021
This paper investigates physical layer security analysis of cooperative non-orthogonal multiple access (NOMA) communication system. A virtual full-duplex (VFD) relaying scheme with an untrusted amplify-and-forward (AF) half-duplex (HD) relay and a ...
Weidong Guo, Yuxi Liu
doaj   +1 more source

Cooperative Secure Transmission in the Presence of Untrusted Relay

open access: yesInternational Journal of Distributed Sensor Networks, 2016
Considering a nonregenerative untrusted relay network, we investigate three different secure transmission strategies, for example, noncooperative strategy, conventional amplify-and-forward (AF) strategy, and cooperative jamming (CJ) strategy.
Dechuan Chen   +4 more
doaj   +1 more source

Individual secrecy of fading homogeneous multiple access wiretap channel with successive interference cancellation

open access: yesEURASIP Journal on Wireless Communications and Networking, 2017
We investigate individual secrecy performance in a K-user quasi-static Rayleigh fading homogeneous multiple access wiretap channel (MAC-WT), where a legitimate receiver employs successive interference cancellation (SIC) decoding.
Kaiwei Jiang   +4 more
doaj   +1 more source

Physical layer security in cognitive NOMA sensor networks with full-duplex technique

open access: yesInternational Journal of Distributed Sensor Networks, 2021
This article studies the physical layer security in a downlink full-duplex cognitive non-orthogonal multiple access sensor networks (FD-C-NOMA). Compared with the existing works, this article proposes a FD-C-NOMA transmission scheme with a primary user ...
Zhihui Shang   +4 more
doaj   +1 more source

SIC-Based Secrecy Performance in Uplink NOMA Multi-Eavesdropper Wiretap Channels

open access: yesIEEE Access, 2018
A new paradigm of uplink non-orthogonal multiple access along with multiple eavesdroppers to achieve secrecy transmission is studied in this paper.
Kaiwei Jiang   +4 more
doaj   +1 more source

Physical Layer Security in NOMA-Enabled Cognitive Radio Networks With Outdated Channel State Information

open access: yesIEEE Access, 2020
In this article, we investigate physical layer security (PLS) in non-orthogonal multiple access-enabled (NOMA-enabled) underlay cognitive radio networks (CRNs) with outdated channel state information (CSI).
Yong Chen   +3 more
doaj   +1 more source

Security-Reliability Analysis in CR-NOMA IoT Network Under I/Q Imbalance

open access: yesIEEE Access, 2023
This paper presents a controllable analysis framework for evaluating the reliability and security of underlay cognitive radio networks (CRs) relying on non-orthogonal multiple access (NOMA).
Hung Nguyen   +5 more
doaj   +1 more source

Security Improvement With QoS Provisioning Using Service Priority and Power Allocation for NOMA-IoT Networks

open access: yesIEEE Access, 2021
Non-orthogonal multiple access (NOMA) has gained attention as a promising multiple access scheme for the Internet of Things (IoT). A typical setting of user ordering in NOMA networks with user priority difference allows a service priority for solely low ...
Waqas Khalid, Heejung Yu
doaj   +1 more source

Artificial Intelligence in Systemic Sclerosis: Clinical Applications, Challenges, and Future Directions

open access: yesArthritis Care &Research, EarlyView.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos   +2 more
wiley   +1 more source

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