Results 21 to 30 of about 2,639,032 (289)

Noise shielding surrogate models using dynamic artificial neural networks

open access: yes, 2021
The optimal design methodologies in aeronautics are known to be constrained by the computational burden required by direct simulations. Due to this reason, the development of efficient metamodelling techniques represents nowadays an imperative need for ...
Cioffi I.   +4 more
core   +1 more source

Reliability and Security Performance Analysis of Hybrid Satellite-Terrestrial Multi-Relay Systems With Artificial Noise

open access: yesIEEE Access, 2021
Land mobile satellite communication and physical layer security are considered as the promising paradigms in beyond 5G networks. In this paper, we establish the multi-relay hybrid satellite-terrestrial systems (HSTSs) with artificial noise (AN) to ...
Mengyan Huang   +4 more
doaj   +1 more source

Are the comfort classes noise and vibration levels on board really suitable?

open access: yes, 2021
In shipbuilding industry, comfort is a relevant issue both for crew members and passengers. A comfortable environment enables crew members to perform accurately their tasks and it is an effective factor contributing to the satisfaction of passengers ...
Flavia D'Agostin   +2 more
core   +1 more source

Noise: towards a definition [PDF]

open access: yes
The research aims to explore the perceptual affects of noise on the relationship between performers, their instruments and listeners. The portfolio of compositions and accompanying thesis demonstrates the results of this treatment of sound and space ...
Riley, Thomas Richard
core   +3 more sources

Improving Secrecy for Correlated Main and Wiretap Channels Using Cooperative Jamming

open access: yesIEEE Access, 2019
To reduce the secrecy loss due to the correlation between main and wiretap channels, this paper introduces a cooperative jamming relay to degrade the reception at the eavesdropper.
Sai Xu   +5 more
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

Noise landing charges and passengers' choice of airport. [PDF]

open access: yes, 1995
This study demonstrates how aircraft noise can be translated into a form of landing charge. The objectives of the thesis were to develop noise landi'ng charges for six of the major airports in England and to determine what the implication it has on ...
Yeahiya, Mohammed
core   +7 more sources

GPI-Based Secrecy Rate Maximization Beamforming Scheme for Wireless Transmission With AN-Aided Directional Modulation

open access: yesIEEE Access, 2018
In a directional modulation network, a general power iterative (GPI) based beamforming scheme is proposed to maximize the secrecy rate (SR), where there are two optimization variables required to be optimized. The first one is the useful precoding vector
Hai Yu   +9 more
doaj   +1 more source

Secure MISO-NOMA Transmission With Artificial Noise [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2018
This correspondence studies a new secrecy beamforming (SBF) scheme for multiple-input single-output non-orthogonal multiple access (MISO-NOMA) systems. In particular, the proposed SBF scheme efficiently exploits artificial noise to protect the confidential information of two NOMA assisted legitimate users, such that only the eavesdropper's channel is ...
Lu Lv   +3 more
openaire   +2 more sources

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

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