一类AMDS符号对码的构造

Construction of a Class of AMDS Symbol-pair Codes

在高密度存储技术中,由于磁头读写不一致常会造成符号对错误.符号对码是一种能纠正符号对错误的有效编码方案,构造参数良好的符号对码是目前编码理论研究的主要问题之一.本文利用有限域F_(p)上长为6p的重根循环码构造了一类极小对距离为7的几乎最大距离可分(AMDS)码.

In high density data storage systems,symbols cannot always be written and read consistently in channels that output pairs of overlapping symbols.This often causes symbol-pair errors in symbol-pair read channel.Symbol-pair codes are an effective coding scheme which can correct symbol-pair errors.A main topic in the theory of symbol-pair codes is to find symbol-pair codes with good parameters at present.In this paper,we construct a class of AMDS symbol-pair codes with minimum pair distance 7 by using repeated-root cyclic codes over F_(p)of length 6p.