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Compressed Encoding for Rank Modulation

En Gad, Eyal and Jiang, Anxiao (Andrew) and Bruck, Jehoshua (2011) Compressed Encoding for Rank Modulation. California Institute of Technology , Pasadena, CA. (Unpublished) http://resolver.caltech.edu/CaltechPARADISE:2011.ETR108

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Abstract

Rank modulation has been recently proposed as a scheme for storing information in flash memories. While rank modulation has advantages in improving write speed and endurance, the current encoding approach is based on the "push to the top" operation that is not efficient in the general case. We propose a new encoding procedure where a cell level is raised to be higher than the minimal necessary subset -instead of all - of the other cell levels. This new procedure leads to a significantly more compressed (lower charge levels) encoding. We derive an upper bound for a family of codes that utilize the proposed encoding procedure, and consider code constructions that achieve that bound for several special cases.


Item Type:Report or Paper (Technical Report)
Group:Parallel and Distributed Systems Group
Record Number:CaltechPARADISE:2011.ETR108
Persistent URL:http://resolver.caltech.edu/CaltechPARADISE:2011.ETR108
Usage Policy:You are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format.
ID Code:26139
Collection:CaltechPARADISE
Deposited By: Imported from CaltechPARADISE
Deposited On:18 Feb 2011
Last Modified:26 Dec 2012 13:54

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