Results 1 to 10 of about 780,490 (184)

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

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

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

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
openaire   +4 more sources

Artificial Noise Injection for Securing Single-Antenna Systems [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2017
We propose a novel artificial noise (AN) injection scheme for wireless systems over quasi-static fading channels, in which a single-antenna transmitter sends confidential messages to a half-duplex receiver in the presence of an eavesdropper.
He, Biao   +2 more
core   +4 more sources

Noise-induced artificial intelligence

open access: yesPhysical Review Research, 2022
We show that unavoidable stochastic fluctuations are not only affecting information processing in a destructive or constructive way, but may even induce conditions necessary for the artificial intelligence itself.
Alex Zhao   +5 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.
Mihaylov, Petar   +3 more
openaire   +5 more sources

Artificial Noise Revisited [PDF]

open access: yesIEEE Transactions on Information Theory, 2015
The artificial noise (AN) scheme, proposed by Goel and Negi, is being considered as one of the key enabling technology for secure communications over multiple-input multiple-output (MIMO) wiretap channels. However, the decrease in secrecy rate due to the increase in the number of Eve's antennas is not well understood.
Shuiyin Liu   +2 more
openaire   +2 more sources

Ergodic Secrecy Rate Analysis and Optimal Power Allocation for Symbiotic Radio Networks

open access: yesIEEE Access, 2023
In this paper, we address the challenge of establishing secure communication within a symbiotic radio (SR) network. This network comprises a primary transmitter (PT), a primary receiver (PR), a passive backscatter device (BD), and an eavesdropper (ED ...
Azzam Al-Nahari   +4 more
doaj   +1 more source

Two Low-Complexity Efficient Beamformers for an IRS- and UAV-Aided Directional Modulation Network

open access: yesDrones, 2023
As excellent tools for aiding communication, an intelligent reflecting surface (IRS) and an unmanned aerial vehicle (UAV) can extend the coverage area, remove the blind area, and achieve a dramatic rate improvement.
Yeqing Lin   +8 more
doaj   +1 more source

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