Codes for storage of data on a 1-d granular magnetic medium

Arya Mazumdar, Alexander Barg, Navin Kashyap

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Conventional magnetic recording media are composed of tiny fundamental magnetizable units, called "grains", that are random in size and shape. Data are stored on a medium in the form of bits written into evenly spaced bit cells. Writing involves uniformly polarizing all the grains within a bit cell. In the push towards terabit-density magnetic recording, bit cells get smaller and smaller, their size eventually becoming commensurate with the size of an individual grain. At this stage, lack of precise knowledge of grain boundaries becomes a bottleneck. This lack of knowledge manifests itself in the form of an error mechanism in which bits of data get overwritten by their neighbours on the medium. We consider a one-dimensional version of this error model, and derive several properties of codes that correct this type of error.

Original languageEnglish (US)
Title of host publication2010 International Conference on Signal Processing and Communications, SPCOM 2010
DOIs
StatePublished - Oct 29 2010
Event2010 International Conference on Signal Processing and Communications, SPCOM 2010 - Bangalore, India
Duration: Jul 18 2010Jul 21 2010

Publication series

Name2010 International Conference on Signal Processing and Communications, SPCOM 2010

Other

Other2010 International Conference on Signal Processing and Communications, SPCOM 2010
CountryIndia
CityBangalore
Period7/18/107/21/10

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