Results 11 to 20 of about 769,138 (291)

Large-Scale Multicast Group Secure Transmission Scheme Based on Multi-Carrier FDA

open access: yesSensors, 2023
Aiming at the problem that the traditional physical layer technology cannot realize secure transmission due to the large number of users and wide dispersion in the multicast system, a layered transmission method is proposed, and a scheme for the secure ...
Dan Wu   +4 more
doaj   +1 more source

Antenna Grouping-Based Blind Artificial Noise for TDD Secure Transmission

open access: yesIEEE Access, 2021
The artificial noise (AN-) aided techniques have been considered as promising candidates to enhance the physical layer security. However, the effect of AN on an eavesdropper (Eve) can be severely degraded as the number of antennas at Eve increases.
Hyukmin Son, Sangjoon Park
doaj   +1 more source

Practical Secrecy using Artificial Noise [PDF]

open access: yesIEEE Communications Letters, 2013
In this paper, we consider the use of artificial noise for secure communications. We propose the notion of practical secrecy as a new design criterion based on the behavior of the eavesdropper's error probability $P_E$, as the signal-to-noise ratio goes to infinity.
Liu, Shuiyin   +2 more
openaire   +2 more sources

Secrecy Performance of a Multi-NOMA-MIMO System in the UEH Relaying Network Using the PSO Algorithm

open access: yesIEEE Access, 2021
In this paper, we investigate the secrecy performance of the nonorthogonal multiple access (NOMA) system in an untrusted relaying energy harvesting (UEH) network with the multiple-input multiple-output (MIMO) architecture using the maximum ratio ...
Thi Le Anh, Ic Pyo Hong
doaj   +1 more source

Secure Transmission of Terahertz Signals with Multiple Eavesdroppers

open access: yesMicromachines, 2022
The terahertz (THz) band is expected to become a key technology to meet the ever-increasing traffic demand for future 6G wireless communications, and a lot of efforts have been paid to develop its capacity.
Yuqian He   +4 more
doaj   +1 more source

Color-decoupled photo response non-uniformity for digital image forensics [PDF]

open access: yes, 2012
The last few years have seen the use of photo response non-uniformity noise (PRNU), a unique fingerprint of imaging sensors, in various digital forensic applications such as source device identification, content integrity verification and authentication.
Li, Chang-Tsun, Li, Yue
core   +2 more sources

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

Artificial Noise Aided Secure Transmission for Active RIS-Aided NOMA Networks

open access: yesIEEE Access, 2023
A secrecy rate maximization problem for active reconfigurable intelligent surface (RIS) aided non-orthogonal multiple access networks has been studied in this paper. Assuming that the perfect channel state information is available, we aim to maximize the
Fengming Yang, Weiran Guo, Jianxin Dai
doaj   +1 more source

Ultimate on-chip quantum amplifier [PDF]

open access: yes, 2010
We report amplification of electromagnetic waves by a single artificial atom in open 1D space. Our three-level artificial atom -- a superconducting quantum circuit -- coupled to a transmission line presents an analog of a natural atom in open space.
A. A. Abdumalikov   +7 more
core   +2 more sources

Noise properties in the ideal Kirchhoff-Law-Johnson-Noise secure communication system [PDF]

open access: yes, 2014
In this paper we determine the noise properties needed for unconditional security for the ideal Kirchhoff-Law-Johnson-Noise (KLJN) secure key distribution system using simple statistical analysis.
Gingl, Zoltan, Mingesz, Robert
core   +3 more sources

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