Results 31 to 40 of about 11,676 (284)

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

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

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

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

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

Multilevel structured low-density parity-check codes [PDF]

open access: yes, 2008
Low-Density Parity-Check (LDPC) codes are typically characterized by a relatively high-complexity description, since a considerable amount of memory is required in order to store their code description, which can be represented either by the connections ...
S. Chen   +5 more
core   +1 more source

Cyclic and Quasi-Cyclic DNA Codes

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

On the concatenated structure of quasi-cyclic codes

open access: yesLietuvos Matematikos Rinkinys, 2003
There is not abstract,
Gintaras Skersys
doaj   +3 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

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