Results 1 to 10 of about 1,960 (155)

On quasi-cyclic codes and traces of codes

open access: yesLietuvos Matematikos Rinkinys, 2004
There is  not abstract.
Gintaras Skersys
doaj   +5 more sources

Quantum Coding via Quasi-Cyclic Block Matrix

open access: yesEntropy, 2023
An effective construction method for long-length quantum code has important applications in the field based on large-scale data. With the rapid development of quantum computing, how to construct this class of quantum coding has become one of the key ...
Yuan Li, Jin-Yang Li
doaj   +3 more sources

Lower Bound on the Minimum Distance of Single-Generator Quasi-Twisted Codes

open access: yesMathematics, 2023
We recall a classic lower bound on the minimum Hamming distance of constacyclic codes over finite fields, analogous to the well-known BCH bound for cyclic codes.
Adel Alahmadi   +2 more
doaj   +1 more source

An explicit construction of quantum codes from one-generator generalized quasi-cyclic codes [PDF]

open access: yesMATEC Web of Conferences, 2021
In this paper, we take advantage of a class of one-generator generalized quasi-cyclic (GQC) codes of index 2 to construct quantum error-correcting codes.
Yao Yu, Ma Yuena, Li Husheng, Lv Jingjie
doaj   +1 more source

Reproducible families of codes and cryptographic applications

open access: yesJournal of Mathematical Cryptology, 2021
Structured linear block codes such as cyclic, quasi-cyclic and quasi-dyadic codes have gained an increasing role in recent years both in the context of error control and in that of code-based cryptography.
Santini Paolo   +2 more
doaj   +1 more source

Quasi-Cyclic Subcodes of Cyclic Codes [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2017
We completely characterize possible indices of quasi-cyclic subcodes in a cyclic code for a very broad class of cyclic codes. We present enumeration results for quasi-cyclic subcodes of a fixed index and show that the problem of enumeration is equivalent to enumeration of certain vector subspaces in finite fields.
Belfiore, Jean-Claude   +2 more
openaire   +6 more sources

Multidimensional Quasi-Cyclic and Convolutional Codes [PDF]

open access: yesIEEE Transactions on Information Theory, 2016
We introduce multidimensional analogues of quasi-cyclic (QC) codes and study their algebraic structure. We demonstrate a concatenated structure for multidimensional QC codes and use this to prove that this class of codes is asymptotically good. We also relate the new family of codes to convolutional codes.
Cem Guneri, Buket Ozkaya
openaire   +4 more sources

Quasi-Cyclic LDPC Codes of Column-Weight Two Using a Search Algorithm

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
This article introduces a search algorithm for constructing quasi-cyclic LDPC codes of column-weight two. To obtain a submatrix structure, rows are divided into groups of equal sizes.
Michael Liebelt, Gabofetswe Malema
doaj   +2 more sources

Quasi-Cyclic Codes Via Unfolded Cyclic Codes and Their Reversibility

open access: yesIEEE Access, 2019
The finite field $\mathbb {F}_{q^\ell }$ of $q^\ell $ elements contains $\mathbb {F}_{q}$ as a subfield. If $\theta \in \mathbb {F}_{q^\ell }$ is of degree $\ell $ over $\mathbb {F}_{q}$ , it can be used to unfold elements of $\mathbb {F}_{q^\
Ramy Taki Eldin, Hajime Matsui
doaj   +1 more source

Quasi-Cyclic Codes

open access: yes, 2020
arXiv admin note: text overlap with arXiv:1906 ...
Güneri, Cem, Ling, San, Özkaya, Buket
openaire   +4 more sources

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