Results 21 to 30 of about 170,227 (256)

Artificial Noise-Aided Physical Layer Security in Underlay Cognitive Massive MIMO Systems with Pilot Contamination

open access: yesEntropy, 2017
In this paper, a secure communication model for cognitive multi-user massive multiple-input multiple-output (MIMO) systems with underlay spectrum sharing is investigated.
Hayder Al-Hraishawi   +2 more
doaj   +1 more source

Cooperative Jammer Selection for Secrecy Improvement in Cognitive Internet of Things

open access: yesSensors, 2018
Smart homes can improve the quality of life and be implemented by Internet of Things (IoT) technologies. However, security is a very important issue in smart homes.
Ping Xie   +4 more
doaj   +1 more source

Cooperative Beamforming With Artificial Noise Injection for Physical-Layer Security

open access: yesIEEE Access, 2023
In the sixth-generation (6G) communications, how to deploy and manage massively connected Internet-of-Things (IoT) nodes will be one of the key technical challenges, because 6G is expected to provide 10 times higher connection, compared to 5G.
Geunyeong Jang   +3 more
doaj   +1 more source

Power and Time Slot Allocation Method for Secured Satellite Transmission Based on Weighted Fractional Data Carrying Artificial Noise

open access: yesIEEE Access, 2018
In this paper, a power and time slot allocation method is proposed for the weighted fractional data carrying artificial noise (DCAN) to secure satellite transmission.
Ruiyang Xu   +4 more
doaj   +1 more source

Artificial Noise Aided Hybrid Analog-Digital Beamforming for Secure Transmission in MIMO Millimeter Wave Relay Systems

open access: yesIEEE Access, 2019
Millimeter wave (mm-wave) communications, especially mm-wave relay systems, have been considered as a key technology for next-generation wireless networks due to the rich spectrum resources.
Shaoyu Wang   +5 more
doaj   +1 more source

Acoustic Metasurface for Space‐time Reflection Manipulation

open access: yesAdvanced Science
Recently, space‐time modulation has revolutionized the wave engineering technologies, providing unprecedented opportunities beyond traditional static systems.
Yunhan Yang   +6 more
doaj   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

open access: yesFEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass   +2 more
wiley   +1 more source

Robust Beamforming Design for Secure DM-Based Relay Networks With Self-Sustained Jammers

open access: yesIEEE Access, 2019
In this paper, we propose to use self-sustained jammers to generate artificial noise with the aim of enhancing the physical layer security of a directional modulation (DM) relay system.
Xiaobo Zhou   +4 more
doaj   +1 more source

Novel Noise Injection Scheme to Guarantee Zero Secrecy Outage under Imperfect CSI

open access: yesEntropy, 2023
The paper proposes a novel artificial noise (AN) injection strategy in multiple-input single-output multiple-antenna-eavesdropper (MISOME) systems under imperfect channel estimation at the legitimate channel to achieve zero secrecy outage probability ...
Hien Q. Ta, Lam Cao, Hoon Oh
doaj   +1 more source

Clinical performance of the urine‐based TERT promoter AbsoluteQ Digital PCR for non‐invasive detection of bladder cancer

open access: yesMolecular Oncology, EarlyView.
A urine‐based digital PCR assay targeting two hotspot TERT promoter variants detected bladder cancer with high sensitivity and no false positives in this case–control cohort. The streamlined AbsoluteQ workflow outperformed Sanger sequencing and supports non‐invasive molecular testing for bladder cancer detection.
Anna Nykel   +12 more
wiley   +1 more source

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