Low complexity codes for writing a write-once memory twice

摘要

A write-once memory (wom) is a storage medium formed by a number of “write-once” binary cells, where each cell initially is in a ‘0’ state and can be changed to a ‘1’ state irreversibly. Examples of write-once memories include SLC flash memories and optical disks. This paper presents some low complexity codes for writing such write-once memories twice.