Low density parity check codes for magnetic recording channels

Author

Song, Hongxin ; Todd, Richard M. ; Cruz, J.R.

Author_Institution

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

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

2183

Lastpage

2186

Abstract

We propose a system for magnetic recording, using a low density parity check (LDPC) code as the error-correcting-code, in conjunction with a rate 16/17 quasi-maximum-transition-run channel code and a modified E²PR4-equalized channel. Iterative decoding between the partial response channel and the LDPC code is performed. Simulations show that this system can achieve a 5.9 dB gain over uncoded EPR4. The algorithms used to design this LDPC code are also discussed

Keywords

channel coding; digital magnetic recording; equalisers; error correction codes; iterative decoding; partial response channels; 5.9 dB; coding gain; error-correcting-code; iterative decoding; low density parity check code; magnetic recording channels; modified E²PR4-equalized channel; partial response channel; rate 16/17 quasi-maximum-transition-run channel code; Algorithm design and analysis; Concatenated codes; Convolutional codes; Gain; Iterative algorithms; Iterative decoding; Magnetic recording; Parity check codes; Partial response channels; Turbo codes;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908351

Filename

908351