Results 21 to 30 of about 22,452,588 (375)

Genetic Optimization of Liquid Crystal Matrix Based Interference Suppression for VLC MIMO Transmissions

open access: yesIEEE Photonics Journal, 2022
Optical channel decorrelation is a key aspect in designing a multi-user visible light communication system. As light-emitting diodes (LEDs) are commonly used for illumination and data transmission in such a system simultaneously, the interference between
Adrian Krohn   +2 more
doaj   +1 more source

Structured channel covariance estimation from limited samples for large antenna arrays

open access: yesEURASIP Journal on Wireless Communications and Networking, 2023
In massive multiuser multiple antenna systems, the knowledge of the users’ channel covariance matrix is crucial for minimum mean square error channel estimation in the uplink and it plays an important role in several multiuser beamforming schemes in the ...
Tianyu Yang   +3 more
doaj   +1 more source

Extended IMD2020: a large‐scale annotated dataset tailored for detecting manipulated images

open access: yesIET Biometrics, 2021
Image forensic datasets need to accommodate a complex diversity of systematic noise and intrinsic image artefacts to prevent any overfitting of learning methods to a small set of camera types or manipulation techniques.
Adam Novozámský   +2 more
doaj   +1 more source

Impact of Liquid Crystal Based Interference Mitigation and Precoding on the Multiuser Performance of VLC Massive MIMO Arrays

open access: yesIEEE Photonics Journal, 2022
In visible light communication systems, the ability to suppress interference caused by other light sources is a major benefit towards performance improvements.
Adrian Krohn   +4 more
doaj   +1 more source

Fundamental and speculative components of the cryptocurrency pricing dynamics

open access: yesFinancial Innovation, 2023
The driving forces behind cryptoassets’ price dynamics are often perceived as being dominated by speculative factors and inherent bubble-bust episodes. Fundamental components are believed to have a weak, if any, role in the price-formation process.
Jiri Kukacka, Ladislav Kristoufek
doaj   +1 more source

Information Theory in Neuroscience [PDF]

open access: yesEntropy, 2019
This is the Editorial article summarizing the scope and contents of the Special Issue, Information Theory in Neuroscience.
Eugenio Piasini, Stefano Panzeri
openaire   +5 more sources

Group testing: an information theory perspective [PDF]

open access: yesFoundations and Trends in Communications and Information Theory, 2019
The group testing problem concerns discovering a small number of defective items within a large population by performing tests on pools of items. A test is positive if the pool contains at least one defective, and negative if it contains no defectives ...
Matthew Aldridge   +2 more
semanticscholar   +1 more source

Kinetic theory of information -- the dynamics of information [PDF]

open access: yes, 2015
A kinetic approach to the notion of information is proposed, based on Liouville kinetic theory. The general kinetic equation for the evolution of the N-particle information $\mathcal{I}_N$ in a Hamiltonian system of large particle number $N\gg 1$ is ...
Baumjohann, W., Treumann, R. A.
core   +3 more sources

Constructor theory of information [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
We propose a theory of information expressed solely in terms of which transformations of physical systems are possible and which are impossible—i.e. in constructor-theoretic terms. It includes conjectured, exact laws of physics expressing the regularities that allow information to be physically instantiated.
Deutsch, David, Marletto, Chiara
openaire   +3 more sources

Low-density parity-check codes for asymmetric distributed source coding [PDF]

open access: yes, 2010
The research work is partially funded by the Strategic Educational Pathways Scholarship Scheme (STEPS-Malta). This scholarship is partly financed by the European Union - European Social Fund (ESF 1.25).Low-Density Parity-Check (LDPC) codes achieve good ...
Debono, Carl James   +3 more
core   +1 more source

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