Results 31 to 40 of about 487,771 (286)

Evaluating capacities of bosonic Gaussian channels [PDF]

open access: yesPhysical Review A, 2001
14 pages, RevTeX, 5 eps ...
Holevo, A. S., Werner, R. F.
openaire   +2 more sources

Achieving Maximum Possible Speed on Constrained Block Transmission Systems

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
We develop a theoretical framework for achieving the maximum possible speed on constrained digital channels with a finite alphabet. A common inaccuracy that is made when computing the capacity of digital channels is to assume that the inputs and outputs ...
Tokunbo Ogunfunmi, Obianuju Ndili
doaj   +2 more sources

Bounding the energy-constrained quantum and private capacities of phase-insensitive bosonic Gaussian channels

open access: yesNew Journal of Physics, 2018
We establish several upper bounds on the energy-constrained quantum and private capacities of all single-mode phase-insensitive bosonic Gaussian channels.
Kunal Sharma   +3 more
doaj   +1 more source

Some New Results on the Multiple-AccessWiretap Channel

open access: yesEntropy, 2014
In this paper, some new results on the multiple-access wiretap channel (MAC-WT) are provided. Specifically, first, we investigate the degraded MAC-WT, where two users transmit their corresponding confidential messages (no common message) to a legitimate ...
Bin Dai, Zheng Ma
doaj   +1 more source

Predictive Deep Learning for High‐Dimensional Inverse Modeling of Hydraulic Tomography in Gaussian and Non‐Gaussian Fields

open access: yesWater Resources Research, 2023
Inverse modeling of hydraulic tomography (HT) is computationally expensive for estimating high‐dimensional hydrogeologic parameter fields. In this work, we develop a novel method called HT‐INV‐NN, which combines dimensionality reduction techniques with a
Quan Guo, Ming Liu, Jian Luo
doaj   +1 more source

The Gaussian two-way diamond channel [PDF]

open access: yes2013 51st Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2013
We consider two-way relaying in a Gaussian diamond channel, where two terminal nodes wish to exchange information using two relays. A simple baseline protocol is obtained by time-sharing between two one-way protocols. To improve upon the baseline performance, we propose two compute-and-forward (CF) protocols: Compute-and-forward Compound multiple ...
V, Prathyusha   +2 more
openaire   +2 more sources

On Superposition Lattice Codes for the K-User Gaussian Interference Channel

open access: yesEntropy
In this study, we work with lattice Gaussian coding for a K-user Gaussian interference channel. Following the procedure of Etkin et al., in which the capacity is found to be within 1 bit/s/Hz of the capacity of a two-user Gaussian interference channel ...
María Constanza Estela   +1 more
doaj   +1 more source

Channel-noise tracking for sub-shot-noise-limited receivers with neural networks

open access: yesPhysical Review Research, 2021
Non-Gaussian receivers for optical communication with coherent states can achieve measurement sensitivities beyond the limits of conventional detection, given by the quantum-noise limit (QNL).
M. T. DiMario, F. E. Becerra
doaj   +1 more source

Entanglement distribution maximization over one-side Gaussian noisy channel

open access: yes, 2010
The optimization of entanglement evolution for two-mode Gaussian pure states under one-side Gaussian map is studied. Even there isn't complete information about the one-side Gaussian noisy channel, one can still maximize the entanglement distribution by ...
Jia-Zhong Hu   +5 more
core   +1 more source

On Constant Gaps for the Two-way Gaussian Interference Channel [PDF]

open access: yes, 2012
We introduce the two-way Gaussian interference channel in which there are four nodes with four independent messages: two-messages to be transmitted over a Gaussian interference channel in the $\rightarrow$ direction, simultaneously with two-messages to ...
Cheng, Zhiyu, Devroye, Natasha
core   +1 more source

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