Results 21 to 30 of about 780,589 (283)

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

Artificial neural net based noise cancellor [PDF]

open access: yesACE '90. Proceedings of [XVI Annual Convention and Exhibition of the IEEE In India], 2005
This paper presents a new method for noise cancellation with an Artificial Neural Network. The network used is a feedforward one with three layers. The backpropagation and Stastical Cauchy's learning algorithms are employed for adaptation of the internal parameters of the network.
Dash, PK   +3 more
openaire   +2 more sources

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

Safeguarding MIMO Communications with Reconfigurable Metasurfaces and Artificial Noise [PDF]

open access: yesICC 2021 - IEEE International Conference on Communications, 2021
6 pages, 3 figures, submitted to an IEEE ...
George C. Alexandropoulos   +3 more
openaire   +3 more sources

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

Enhancing the significance of gravitational wave bursts through signal classification [PDF]

open access: yes, 2017
The quest to observe gravitational waves challenges our ability to discriminate signals from detector noise. This issue is especially relevant for transient gravitational waves searches with a robust eyes wide open approach, the so called all- sky burst ...
Drago, M.   +9 more
core   +3 more sources

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

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 Allocation and Time-Domain Artificial Noise Design for Wiretap OFDM with Discrete Inputs [PDF]

open access: yes, 2013
Optimal power allocation for orthogonal frequency division multiplexing (OFDM) wiretap channels with Gaussian channel inputs has already been studied in some previous works from an information theoretical viewpoint.
Chong-yung Chi   +7 more
core   +1 more source

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