Results 11 to 20 of about 187,634 (305)

The Secrecy Capacity Optimization Artificial Noise: A New Type of Artificial Noise for Secure Communication in MIMO System [PDF]

open access: yesIEEE Access, 2019
In multiple-input multiple-output wireless communication system, artificial noise (AN) is designed to be aligned into the null space of the legitimate channel so that it has no effect on the legitimate channel.
Yebo Gu   +3 more
doaj   +4 more sources

Induced internal noise in perceptual artificial scotomas created by surrounding dynamic noise

open access: yesVision Research, 2007
Research has shown that exposure to a homogeneous gray patch surrounded by a dynamic noise background causes filling-in of the artificial scotoma by the twinkling noise from the surround. When the background is switched off, observers report perception of a prolonged patch of twinkling noise in the unstimulated area.
Velitchko Manahilov   +2 more
exaly   +5 more sources

Artificial Noise Injection and Its Power Loading Methods for Secure Space-Time Line Coded Systems [PDF]

open access: yesEntropy, 2019
In this paper, we consider a 2 × 2 space-time line coded (STLC) system having two-transmit and two-receive antennas. To improve the secrecy rate of the STLC system, in which an illegitimate receiver eavesdrops the information delivered from ...
Jingon Joung   +3 more
doaj   +2 more sources

Performance Analysis of Artificial Noise-Assisted Location-Based Beamforming in Rician Wiretap Channels [PDF]

open access: yesEntropy, 2023
This paper studies the performance of location-based beamforming with the presence of artificial noise (AN). Secure transmission can be achieved using the location information of the user.
Hua Fu, Xiaoyu Zhang, Linning Peng
doaj   +2 more sources

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.
Shuiyin Liu   +2 more
exaly   +3 more sources

Secure D2D underlaying cellular communication based on artificial noise assisted [PDF]

open access: yesTongxin xuebao, 2015
A secure communication scheme based on artificial noise assisted from base station(BS)was proposed to improve the system secrecy rate of the D2D underlaying cellular.Firstly,the system secrecy rate was modeled.Then the BS with multi-antennas added ...
Xiao-lei KANG   +2 more
doaj   +2 more sources

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

Impact of Channel Estimation-and-Artificial Noise Cancellation Imperfection on Artificial Noise-Aided Energy Harvesting Overlay Networks [PDF]

open access: yesTelecommunication Systems, 2021
Abstract EHONs (Energy Harvesting Overlay Networks) satisfy stringent design requirements such as high energy-and-spectrum utilization efficiencies. However, due to open access nature of these networks, eavesdroppers can emulate cognitive radios to wire-tap legitimate information, inducing information security to become a great concern.
Khuong Ho-Van, Thiem Do-Dac
openaire   +1 more source

Artificial Residual Noise in Machine Learning [PDF]

open access: yes, 2022
Innen området for digital etterforskning av lyd har det vært en viss skepsis til bruken av maskinlæringsmodeller i forbindelse med fjerning av bakgrunnsstøy. Selv om støydemping ved hjelp av maskinlæring kan gi både effektivitet og hjelpe til med å håndtere mengden data som en etterforsker vil stå overfor, har det ikke blitt tatt i bruk som en ...
Hansen, Gard Eggen
openaire   +2 more sources

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