Position Modulation Code for Rewriting Write-Once Memories

Details Position Modulation Code for Rewriting Write-Once Memories Position Modulation Code for Rewriting Write-Once Memories

2009-12-31

arxiv.org/abs/1001.0167v1

Computer Science

Information Theory

Submitted to IEEE Transactions on Information Theory on Sept. 23, 2009

Scientific paper

A write-once memory (wom) is a storage medium formed by a number of ``write-once'' bit positions (wits), where each wit 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 a low complexity coding scheme for rewriting such write-once memories, which is applicable to general problem configurations. The proposed scheme is called the \emph{position modulation code}, as it uses the positions of the zero symbols to encode some information. The proposed technique can achieve code rates higher than state-of-the-art practical solutions for some configurations. For instance, there is a position modulation code that can write 56 bits 10 times on 278 wits, achieving rate 2.01. In addition, the position modulation code is shown to achieve a rate at least half of the optimal rate.

Affiliated with

Also associated with

No associations

Rating

Position Modulation Code for Rewriting Write-Once Memories does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Position Modulation Code for Rewriting Write-Once Memories, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Position Modulation Code for Rewriting Write-Once Memories will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-104824