Perpendicular and longitudinal recording: a signal-processing and coding perspective

Author

Cideciyan, Roy D. ; Eleftheriou, Evangelos ; Mittelholzer, Thomas

Author_Institution

Zurich Res. Lab., IBM Res., Ruschlikon, Switzerland

Volume

38

Issue

4

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

1698

Lastpage

1704

Abstract

Equalization and noise prediction followed by sequence detection and postprocessing are studied for double-layer perpendicular recording channels that are corrupted by electronics and transition noise. The performance of various outer coding schemes, such as conventional Reed-Solomon codes with 8and 10-bit symbols and low-density parity check codes, is evaluated, and a signal-processing and coding perspective is presented for both longitudinal and perpendicular recording channels. Finally, the capacity of recording channels is characterized

Keywords

Reed-Solomon codes; channel capacity; equalisers; magnetic recording; magnetic recording noise; perpendicular magnetic recording; signal detection; signal processing; Reed-Solomon code; channel capacity; coding; double-layer perpendicular recording channel; electronics noise; equalization; longitudinal recording; low-density parity check code; perpendicular recording; sequence detection; signal processing; transition noise; Communication channels; Detectors; Disk drives; Disk recording; Magnetic heads; Maximum likelihood detection; Parity check codes; Perpendicular magnetic recording; Polynomials; Signal processing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.1017759

Filename

1017759