Results 1 to 10 of about 55,754 (120)

Differential properties of polar codes [PDF]

open access: yesE3S Web of Conferences, 2023
This paper discusses the features of polar coding as a differential encoder for a binary erasure channel. One of the modern methods of error-correcting coding is polar codes, which has great prospects in the development of current and future wireless ...
Shalin Georgiy   +5 more
doaj   +1 more source

A Numerical Study on the Capacity Region of a Three-Layer Wiretap Network

open access: yesEntropy, 2023
In this paper, we study a three-layer wiretap network including the source node in the top layer, N nodes in the middle layer and L sink nodes in the bottom layer.
Jiahong Wu, Nan Liu, Wei Kang
doaj   +1 more source

Minimal State-Space Representation of Convolutional Product Codes

open access: yesMathematics, 2021
In this paper, we study product convolutional codes described by state-space representations. In particular, we investigate how to derive state-space representations of the product code from the horizontal and vertical convolutional codes.
Joan-Josep Climent   +3 more
doaj   +1 more source

Motif-Aware Adversarial Graph Representation Learning

open access: yesIEEE Access, 2022
Graph representation learning has been extensively studied in recent years. It has been proven effective in network analysis and mining tasks such as node classification and link prediction.
Ming Zhao   +3 more
doaj   +1 more source

Two new best [27,10,9 ] codes

open access: yesCommunications, 2000
This paper presents two new [27,10,9] binary linear block codes which reach the upper bound in [1] for best known codes. They have different spectra as the known [27,10,9] codes constructed by Piret [2], Farkaš and Juling [5].
Peter Farkas, Sergio Herrera-Garcia
doaj   +1 more source

Choosing Markovian Credit Migration Matrices by Nonlinear Optimization

open access: yesRisks, 2016
Transition matrices, containing credit risk information in the form of ratings based on discrete observations, are published annually by rating agencies.
Maximilian Hughes, Ralf Werner
doaj   +1 more source

MENENTUKAN MATRIKS PELUANG TRANSISI UNTUK WAKTU OKUPANSI MENGGUNAKAN TRANSFORMASI LAPLACE DAN MATRIKS EKSPONENSIAL

open access: yesMedia Statistika, 2015
The transition probability matrix is a matrix which contains some probability among two state. It has properties that every probability is non-negative and sum by row at every state is one.
Sudarno Sudarno
doaj   +1 more source

Asymptotic internal model based coordination of a flywheel energy storage matrix system

open access: yesFrontiers in Energy Research, 2022
This paper considers a dual objective distributed coordination problem for a flywheel energy storage matrix system. On one hand, the power output of the entire flywheel energy storage matrix system should track its reference command, which is generated ...
He Cai 
doaj   +1 more source

A Robust Scheme for Coherency Detection in Power Systems

open access: yesJurnal Nasional Teknik Elektro, 2021
This paper presents an approach for online generator coherency identification based on windowed dynamic time warping (DTW). Generator rotor speed deviations measured by phasor measurement units (PMUs) are used as input data to compute a DTW ...
Gideon Adom-Bamfi   +1 more
doaj   +1 more source

Matrix-Product Codes over Commutative Rings and Constructions Arising from σ,δ-Codes

open access: yesJournal of Mathematics, 2021
A well-known lower bound (over finite fields and some special finite commutative rings) on the Hamming distance of a matrix-product code (MPC) is shown to remain valid over any commutative ring R.
Mhammed Boulagouaz, Abdulaziz Deajim
doaj   +1 more source

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