Results 11 to 20 of about 601,059 (258)

The Secret Key Capacity of a Class of Noisy Channels with Correlated Sources [PDF]

open access: yesEntropy, 2019
This paper investigates the problem of secret key generation over a wiretap channel when the terminals observe correlated sources. These sources are independent of the main channel and the users overhear them before the transmission takes place.
Germán Bassi   +2 more
doaj   +4 more sources

Multi-Class Cost-Constrained Random Coding for Correlated Sources over the Multiple-Access Channel [PDF]

open access: yesEntropy, 2021
This paper studies a generalized version of multi-class cost-constrained random-coding ensemble with multiple auxiliary costs for the transmission of N correlated sources over an N-user multiple-access channel.
Arezou Rezazadeh   +3 more
doaj   +2 more sources

Inter-node compression with LDPC joint source–channel coding for highly correlated sources

open access: yesAutomatika, 2022
This paper investigates a new communication system where two nodes want to disseminate highly correlated contents to a single destination and can be applied for densely deployed wireless sensors networks applications.
Marwa Ben Abdessalem   +2 more
doaj   +2 more sources

Upper Bound on the Joint Entropy of Correlated Sources Encoded by Good Lattices [PDF]

open access: yesEntropy, 2019
Lattices provide useful structure for distributed coding of correlated sources. A common lattice encoder construction is to first round an observed sequence to a ‘fine’ lattice with dither, then produce the result’s modulo to a ‘ ...
Christian Chapman, Daniel W. Bliss
doaj   +2 more sources

Optimizing age of information with correlated sources

open access: yesProceedings of the Twenty-Third International Symposium on Theory, Algorithmic Foundations, and Protocol Design for Mobile Networks and Mobile Computing, 2022
We develop a simple model for the timely monitoring of correlated sources over a wireless network. Using this model, we study how to optimize weighted-sum average Age of Information (AoI) in the presence of correlation. First, we discuss how to find optimal stationary randomized policies and show that they are at-most a factor of two away from optimal ...
Vishrant Tripathi, Eytan H. Modiano
openaire   +4 more sources

Seismic Interferometry from Correlated Noise Sources

open access: yesRemote Sensing, 2021
It is a well-established principle that cross-correlating seismic observations at different receiver locations can yield estimates of band-limited inter-receiver Green’s functions.
Daniella Ayala-Garcia   +2 more
doaj   +1 more source

Rate Compatible Modulation for Correlated Information Sources

open access: yesIEEE Access, 2021
In this paper we consider the problem of transmitting spatially Correlated Information Sources (CIS) over the Additive White Gaussian Noise (AWGN) Multiple Access Channel (MAC) with transmitted energy constraint.
Imanol Granada   +3 more
doaj   +1 more source

Modified covariance beamformer for solving MEG inverse problem in the environment with correlated sources

open access: yesNeuroImage, 2021
Magnetoencephalography (MEG) is a neuroimaging method ideally suited for non-invasive studies of brain dynamics. MEG’s spatial resolution critically depends on the approach used to solve the ill-posed inverse problem in order to transform sensor signals ...
Aleksandra Kuznetsova   +2 more
doaj   +1 more source

Correlations and characterization of emitting sources [PDF]

open access: yesThe European Physical Journal A, 2006
Dynamical and thermal characterizations of excited nuclear systems produced during the collisions between two heavy ions at intermediate incident energies are presented by means of a review of experimental and theoretical work performed in the last two decades.
Verde, G.   +3 more
openaire   +4 more sources

Developing a Multi-channel Beamformer by Enhancing Spatially Constrained ICA for Recovery of Correlated EEG Sources [PDF]

open access: yesJournal of Biomedical Physics and Engineering, 2021
Background: Brain source imaging based on electroencephalogram (EEG) data aims to recover the neuron populations’ activity producing the scalp potentials. This procedure is known as the EEG inverse problem.
Nasser Samadzadehaghdam   +5 more
doaj   +1 more source

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