Results 91 to 100 of about 487,771 (286)

Capacity Region of the Compound Multiple Access Channels with Common Message and in the Presence of Intersymbol Interference

International Journal of Information and Communication Technology Research, 2014
The capacity region of a two-user linear Gaussian compound Multiple Access Channel with common message (CMACC) and intersymbol interference (ISI) under an input power constraint is derived.
Mostafa Monemizadeh, Seyed Alireza Seyedin, Ghosheh Abed Hodtani   +2 more
doaj  

Unidimensional continuous-variable quantum key distribution

, 2015
We propose the continuous-variable quantum key distribution protocol based on the Gaussian modulation of a single quadrature of the coherent states of light, which is aimed to provide simplified implementation compared to the symmetrically modulated ...
Grosshans, Frédéric, Usenko, Vladyslav C.   +1 more
core   +3 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

A No-Go Theorem for Gaussian Quantum Error Correction

, 2008
It is proven that Gaussian operations are of no use for protecting Gaussian states against Gaussian errors in quantum communication protocols. Specifically, we introduce a new quantity characterizing any single-mode Gaussian channel, called entanglement ...
Jaromír Fiurášek, Julien Niset, N. J. Cerf, Nicolas J. Cerf   +3 more
core   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Towards the Secrecy Capacity of the Gaussian MIMO Wire-tap Channel: The 2-2-1 Channel

, 2007
We find the secrecy capacity of the 2-2-1 Gaussian MIMO wire-tap channel, which consists of a transmitter and a receiver with two antennas each, and an eavesdropper with a single antenna.
Liu, Nan, Shafiee, Shabnam, Ulukus, Sennur   +2 more
core   +2 more sources

Gaussian classical capacity of Gaussian quantum channels

Наносистемы: физика, химия, математика, 2013
info:eu-repo/semantics ...
Karpov, Evgueni, Schafer, Joachim, Pilyavets, Oleg, Garcia-Patron Sanchez, Raul, Cerf, Nicolas   +4 more
openaire   +2 more sources

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Capacity analysis over fractional order Rayleigh fading channel under additive white generalized Gaussian noise

IET Communications
This study presents an innovative fractional order Rayleigh fading model that can be used for channel capacity estimation in the presence of additive white generalized Gaussian noise.
Mehran Kakavand, Mohammadreza Hassannejad Bibalan, Mina Baghani   +2 more
doaj   +1 more source

The Gaussian Multiple Access Wire-Tap Channel with Collective Secrecy Constraints

, 2006
We consider the Gaussian Multiple Access Wire-Tap Channel (GMAC-WT). In this scenario, multiple users communicate with an intended receiver in the presence of an intelligent and informed wire-tapper who receives a degraded version of the signal at the ...
Tekin, Ender, Yener, Aylin
core   +3 more sources