Results 1 to 10 of about 4,907,516 (322)
Cyclicity of Binary Group Codes [PDF]
In this paper, we study the cyclicity of binary group codes, identifying them as ideals in a group algebra. We focus on the construction of ω|ω¯ codes, proving that they are self-dual group codes over the abelian group C2×Ck. We demonstrate that for even
Beatriz García García +2 more
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Enumeration of Optimal Equidistant Codes
Problems of search and enumeration of binary and ternary equidistant codes are considered in the paper. We investigate some combinatorial algorithms and develop specialized computer packages to find non-equivalent optimal binary and ternary equidistant ...
Galina Bogdanova, Todor Todorov
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An equivalence between network coding and index coding [PDF]
We show that the network coding and index coding problems are equivalent. This equivalence holds in the general setting which includes linear and non-linear codes. Specifically, we present an efficient reduction that maps a network coding instance to an index coding one while preserving feasibility.
Effros, Michelle +2 more
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Denk Kodlar Arasındaki Permütasyonu Bulmak
McEliece sistemi [1] gibi bazı şifreleme sistemlerinde denk kodlar kullanılmaktadır ve bu sistemlerin güvenliği verilen iki kodun denk olup olmadığının tespitine ve eğer denk iseler aralarındaki permütasyonun bulunmasının zorluğuna dayanmaktadır [2].
Ekrem EMRE
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On the Equivalence of Interleavers for Turbo Codes [PDF]
Three of the most common interleavers for turbo codes (TCs) are dithered relative prime (DRP) interleavers, quadratic permutation polynomial (QPP) interleavers, and almost regular permutation (ARP) interleavers. In this paper, it is shown that DRP and QPP interleavers can be expressed in the ARP interleaver function form.
Garzon Bohorquez, Ronald +2 more
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On bounded linear codes and the commutative equivalence
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Carpi A., D'Alessandro F.
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A generalization of cyclic code equivalence algorithm to constacyclic codes
Recently, a new algorithm to test equivalence of two cyclic codes has been introduced which is efficient and produced useful results. In this work, we generalize this algorithm to constacyclic codes. As an application of the algorithm we found many constacyclic codes with good parameters and properties. In particular, we found 23 new codes that improve
Dev Akre +3 more
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The equivalence of linear codes implies semi-linear equivalence
We prove that if two linear codes are equivalent then they are semi-linearly equivalent. We also prove that if two additive MDS codes over a field are equivalent then they are additively equivalent.
Ball, Simeon Michael, Dixon, James
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In the last decades, several studies have been developed regarding structures composed by frames infilled with masonry walls, proving the increase of lateral stiffness by the infill.
Alba Bruna Cintra De Grandi +5 more
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Characters and the equivalence of codes
Let \(K\) be a finite field. A linear code of dimension \(k\) and block length \(n\) is a \(k\)-dimensional \(K\)-linear subspace \(C\) of the \(n\)-dimensional vector space \(K^n\) over \(K\). Two linear codes \(C_1\) and \(C_2\) in \(K^n\) are equivalent if there exists a monomial transformation \(T: K^n\to K^n\) such that \(T(C_1)= C_2 ...
Harold N. Ward, Jay A. Wood
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