Upper Limits on Achievable Storage Density Using Turbo Equalization in 2-D Magnetic Recording

The maximum amounts of 2-D intersymbol interference that can be tolerated by the specific types of turbo equalizers are analyzed using the extrinsic information transfer charts. The results translate into the maximum normalized user density that each equalizer can support given an ample channel sign...

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 51; no. 11; pp. 1 - 4
Main Authors No, Jaehyeong, Moon, Jaekyun
Format Journal Article
LanguageEnglish
Published New York IEEE 01.11.2015
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Arrays
Channels
Charts
Complexity theory
Decoding
Density
Equalization
Equalizers
EXIT chart
Interference
Magnetic recording
Magnetism
Running in
Signal to noise ratio
soft-in soft-out linear equalizer
turbo equalizer
Two-dimensional intersymbol interference
turbo equalizer
2-D intersymbol interference (ISI)
extrinsic information transfer (EXIT) chart
soft-in soft-out (SISO) linear equalizer (LE)
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Summary:The maximum amounts of 2-D intersymbol interference that can be tolerated by the specific types of turbo equalizers are analyzed using the extrinsic information transfer charts. The results translate into the maximum normalized user density that each equalizer can support given an ample channel signal-to-noise ratio. It is shown that a low-complexity self-iterating equalizer based on individually weak linear component equalizers running in different directions provides excellent performance.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2015.2436994