Results 11 to 20 of about 4,588 (252)

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 Güneri, Buket Özkaya
openaire   +4 more sources

Fast computation of cyclic convolutions and their applications in code-based asymmetric encryption schemes

open access: yesМоделирование и анализ информационных систем, 2023
The development of fast algorithms for key generation, encryption and decryption not only increases the efficiency of related operations. Such fast algorithms, for example, for asymmetric cryptosystems on quasi-cyclic codes, make it possible to ...
Andrey N. Sushko   +4 more
doaj   +1 more source

On quasi-cyclic subspace codes

open access: yesCoRR, 2016
Construction of subspace codes with good parameters is one of the most important problems in random network coding. In this paper we present first a generalization of the concept of cyclic subspaces codes and further we show that the usual methods for constructing cyclic subspace codes over finite fields works for m-quasi cyclic codes, namely the ...
Ismael Gutiérrez, Ivan Molina
openaire   +2 more sources

Quantum Quasi-Cyclic LDPC Codes [PDF]

open access: yes2007 IEEE International Symposium on Information Theory, 2007
In this paper, a construction of a pair of "regular" quasi-cyclic LDPC codes as ingredient codes for a quantum error-correcting code is proposed. That is, we find quantum regular LDPC codes with various weight distributions. Furthermore our proposed codes have lots of variations for length, code rate. These codes are obtained by a descrete mathematical
Manabu Hagiwara, Hideki Imai
openaire   +2 more sources

Quasi-cyclic NMDS codes

open access: yesFinite Fields and Their Applications, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hongxi Tong, Ding Yang
openaire   +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

On quintic quasi-cyclic codes

open access: yesDiscrete Applied Mathematics, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Anne Desideri Bracco   +2 more
openaire   +2 more sources

Decomposing Quasi-Cyclic Codes

open access: yesElectronic Notes in Discrete Mathematics, 2001
Abstract A new algebraic approach to quasi-cyclic codes is introduced. Technical tools include the Chinese Remainder Theorem, the Discrete Fourier Transform, Chain rings. The main results are a characterization of self-dual quasi-cyclic codes, a trace representation that generalizes that of cyclic codes, and an interpretation of the squaring and ...
San Ling, Patrick Solé
openaire   +1 more source

On the Construction of Skew Quasi-Cyclic Codes [PDF]

open access: yesIEEE Transactions on Information Theory, 2010
In this paper we study a special type of quasi-cyclic (QC) codes called skew QC codes. This set of codes is constructed using a non-commutative ring called the skew polynomial rings $F[x;θ]$. After a brief description of the skew polynomial ring $F[x;θ]$ it is shown that skew QC codes are left submodules of the ring $R_{s}^{l}=(F[x;θ]/(x^{s}-1))^{l ...
Taher Abualrub   +3 more
openaire   +3 more sources

Cyclic and Quasi-Cyclic DNA Codes

open access: yesCoRR, 2021
draft, 16 ...
Adel Alahmadi   +4 more
openaire   +2 more sources

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