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MDS self-dual codes over finite fields have attracted a lot of attention in recent years by their theoretical interests in coding theory and applications in cryptography and combinatorics. In this paper we present a series of MDS self-dual…

信息论 · 计算机科学 2019-11-14 Aixian Zhang , Keqin Feng

An important family of quantum codes is the quantum maximum-distance-separable (MDS) codes. In this paper, we construct some new classes of quantum MDS codes by generalized Reed-Solomon (GRS) codes and Hermitian construction. In addition,…

信息论 · 计算机科学 2023-10-03 Ruhao Wan

It is an important task to construct quantum maximum-distance-separable (MDS) codes with good parameters. In the present paper, we provide six new classes of q-ary quantum MDS codes by using generalized Reed-Solomon (GRS) codes and…

信息论 · 计算机科学 2019-12-06 Weijun Fang , Fang-Wei Fu

For each odd prime power $q$, let $4 \leq n\leq q^{2}+1$. Hermitian self-orthogonal $[n,2,n-1]$ codes over $GF(q^{2})$ with dual distance three are constructed by using finite field theory. Hence, $[[n,n-4,3]]_{q}$ quantum MDS codes for $4…

信息论 · 计算机科学 2015-05-13 Ruihu Li , Zongben Xu

The study of MDS self-dual codes has attracted lots of attention in recent years. There are many papers on determining existence of $q-$ary MDS self-dual codes for various lengths. There are not existence of $q-$ary MDS self-dual codes of…

信息论 · 计算机科学 2016-09-16 Hongxi Tong , Xiaoqing Wang

Recently, Roth and Skachek proposed two methods for constructing nearly maximum-distance separable (MDS) expander codes. We show that through the simple modification of using mixed-alphabet codes derived from MDS codes as constituent codes…

信息论 · 计算机科学 2007-08-09 Marc A. Armand , Jianwen Zhang

Symbol-pair code is a new coding framework which is proposed to correct errors in the symbol-pair read channel. In particular, maximum distance separable (MDS) symbol-pair codes are a kind of symbol-pair codes with the best possible…

信息论 · 计算机科学 2016-08-10 Shuxing Li , Gennian Ge

A chorded cycle in a graph $G$ is a cycle on which two nonadjacent vertices are adjacent in the graph $G$. In 2010, Gao and Qiao independently proved a graph of order at least $4s$, in which the neighborhood union of any two nonadjacent…

组合数学 · 数学 2025-05-26 Zaiping Lu , Shudan Xue

We investigate when a maximum distance separable ($MDS$) code over $F_q$ is also completely regular ($CR$). For lengths $n=q+1$ and $n=q+2$ we provide a complete classification of the $MDS$ codes that are $CR$ or at least uniformly packed…

组合数学 · 数学 2026-01-01 Joaquim Borges , Josep Rifà , Victor Zinoviev

Let $\mathbb{F}_q$ be the finite field of $q$ elements, where $q=p^{m}$ with $p$ being a prime number and $m$ being a positive integer. Let $\mathcal{C}_{(q, n, \delta, h)}$ be a class of BCH codes of length $n$ and designed $\delta$. A…

信息论 · 计算机科学 2024-08-21 Shiyuan Qiang , Huakai Wei , Shaofang Hong

Multiple Input Double Output (MIDO) asymmetric space-time codes for 4 transmit antennas and 2 receive antennas can be employed in the downlink from base stations to portable devices. Previous MIDO code constructions with low Maximum…

信息论 · 计算机科学 2015-03-19 Laura Luzzi , Frédérique Oggier

MDS codes have diverse practical applications in communication systems, data storage, and quantum codes due to their algebraic properties and optimal error-correcting capability. In this paper, we focus on a class of linear codes and…

信息论 · 计算机科学 2024-01-09 Yansheng Wu , Ziling Heng , Chengju Li , Cunsheng Ding

Let $p$ be a prime and let $q$ be a power of $p$. In this paper, by using generalized Reed-Solomon (GRS for short) codes and extended GRS codes, we construct two new classes of quantum maximum-distance- separable (MDS) codes with parameters…

信息论 · 计算机科学 2018-07-17 Weijun Fang , Fang-Wei Fu

Maximum-distance separable (MDS) convolutional codes form an optimal family of convolutional codes, the study of which is of great importance. There are very few general algebraic constructions of MDS convolutional codes. In this paper, we…

信息论 · 计算机科学 2015-11-24 Chin Hei Chan , Maosheng Xiong

We study $q$-ary codes with distance defined by a partial order of the coordinates of the codewords. Maximum Distance Separable (MDS) codes in the poset metric have been studied in a number of earlier works. We consider codes that are close…

信息论 · 计算机科学 2010-05-03 Alexander Barg , Punarbasu Purkayastha

The 2-block intersection graph (2-BIG) of a twofold triple system (TTS) is the graph whose vertex set is composed of the blocks of the TTS and two vertices are joined by an edge if the corresponding blocks intersect in exactly two elements.…

组合数学 · 数学 2020-12-29 Rosalind A. Cameron , David A. Pike

Let C be a linear code with length n and minimum distance d. The stopping redundancy of C is defined as the minimum number of rows in a parity-check matrix for C such that the smallest stopping sets in the corresponding Tanner graph have…

信息论 · 计算机科学 2007-07-13 Junsheng Han , Paul H. Siegel

We present a new general construction of MDS codes over a finite field $\mathbb{F}_q$. We describe two explicit subclasses which contain new MDS codes of length at least $q/2$ for all values of $q \ge 11$. Moreover, we show that most of the…

信息论 · 计算机科学 2017-04-12 Peter Beelen , Sven Puchinger , Johan Rosenkilde né Nielsen

Both maximum distance separable (MDS) codes that are not equivalent to generalized Reed-Solomon (GRS) codes (non-GRS MDS codes) and near MDS (NMDS) codes have nice applications in communication and storage systems. In this paper, we…

信息论 · 计算机科学 2025-01-28 Yang Li , Zhonghua Sun , Shixin Zhu

The main conjecture on maximum distance separable (MDS) codes states that, execpt for some special cases, the maximum length of a q-ary linear MDS code is q+1. This conjecture does not hold true for near maximum distance separable codes…

代数几何 · 数学 2007-07-16 Massimo Giulietti