Application of soft-decision Reed-Solomon decoding to magnetic recording channels

Author

Xia, Haitao ; Cruz, J.R.

Author_Institution

Sch. of Electr. & Comput. Eng., Univ. of Oklahoma, Norman, OK, USA

Volume

40

Issue

5

fYear

2004

Firstpage

3419

Lastpage

3430

Abstract

We report on the application of algebraic soft-decision decoding of Reed-Solomon codes to magnetic recording channels. We present efficient algorithm implementations of the Koetter-Vardy algorithm and introduce a soft version of the Chase algorithm, which expands the decoding list without substantial increase in complexity. Our evaluation of these algorithms, based on realistic simulations on magnetic recording channels, shows that improved performance can be achieved with a small increase in hardware complexity.

Keywords

equivalent circuits; interpolation; magnetic recording; parameter estimation; TSC curve; asynchronous speed; equivalent circuit; induction motor; parameter estimation; pull-out torque point; torque-speed characteristics; uniqueness theorem; Computational modeling; Decoding; Error correction codes; Hardware; Interpolation; Magnetic recording; Parity check codes; Partial response channels; Polynomials; Telecommunication computing; Error-correction codes; Reed–Solomon codes; magnetic recording; partial response channels; soft Chase algorithm; soft-decision decoding;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2004.834194

Filename

1333156