计算机工程与应用 ›› 2014, Vol. 50 ›› Issue (8): 77-80.

• 网络、通信、安全 • 上一篇    下一篇

F2+uF2环上接近MDR码

刘花璐1,陈  希2,刘修生1   

  1. 1.湖北理工学院 数理学院,湖北 黄石 435003
    2.湖北理工学院 经济与管理学院,湖北 黄石 435003
  • 出版日期:2014-04-15 发布日期:2014-05-30

Near-MDR codes over F2+uF2

LIU Hualu1, CHEN Xi2, LIU Xiusheng1   

  1. 1.School of Mathematics and Physics, Hubei Polytechnic University, Huangshi, Hubei 435003, China
    2.School of Economy and Management, Hubei Polytechnic University, Huangshi, Hubei 435003, China
  • Online:2014-04-15 Published:2014-05-30

摘要: S.M.Dodunekov和I.N.Landgev定义并研究了域[Fq]上接近MDS码。对于[F2+uF2]环,相应地定义了接近MDR码,证明了[F2+uF2]环上线性码[C]为接近MDR码的充要条件是它的挠码[Tor(C)]为它剩余类域[F2]上的接近MDS码,并给出了[F2+uF2]环上所有接近MDR码的生成矩阵。

关键词: 线性码, 挠码, 剩余类码, 几乎MDR码, 接近MDR码

Abstract: In 1994, S. M. Dodunekov and I. N. Landgev define and study the near-MDS codes over field [Fq]. In this paper, the near-MDR codes over ring [F2+uF2]are defined, and it is proved that the linear codes over ring [F2+uF2] are the near-MDR if and only if the torsion codes [Tor(C)] are the near-MDS over residue field [F2], and generator matrices of all near-MDR codes over ring [F2+uF2] are given.

Key words: linear code, torsion code, residue code, almost-MDR code, near-MDR code