This work focuses on sequential locally recoverable codes (SLRCs), a special family of locally repairable codes, capable of correcting multiple code symbol erasures, which are commonly used for distributed storage systems. First, we construct an extended $q$-ary family of non-binary SLRCs using code products with a novel maximum number of recoverable erasures $t$ and a minimal repair alternativity $A$. Second, we study how MDS and BCH codes can be used to construct $q$-ary SLRCs. Finally, we compare our codes to other LRCs.
翻译:本文聚焦于顺序局部可恢复码,这是一类特殊的局部可修复码,能够纠正多个码字符号擦除,常用于分布式存储系统。首先,我们通过码乘积构造了一个扩展的$q$元非二进制SLRC族,其具有新颖的最大可恢复擦除数$t$和最小修复备选度$A$。其次,我们研究了如何利用MDS码和BCH码构造$q$元SLRC。最后,我们将所提出的码与其他LRC进行了比较。