Performance of high rate turbo codes on a PR4-equalized magnetic recording channel

Author

Ryan, William E.

Author_Institution

Dept. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA

Volume

2

fYear

1998

fDate

7-11 Jun 1998

Firstpage

947

Abstract

We discuss the applicability of high rate turbo codes for magnetic recording, citing in particular the attractiveness of interleaver gain as opposed to coding gain. We then examine the performance of rate 4/5, 8/9, and 16/17 turbo codes on a PRA-equalized magnetic recording channel at a user density of S_u=2.0. Simulation results show that a gain of 7.1 dB relative to the uncoded situation is attainable at an error rate of 10^-5 for the rate 4/5 and 8/9 codes, whereas the rate 16/17 code achieves a gain of 6.5 dB

Keywords

concatenated codes; convolutional codes; decoding; digital magnetic recording; equalisers; interleaved codes; partial response channels; PR4-equalized magnetic recording channel; binary concatenated convolutional codes; coding gain; error rate; high rate turbo codes; interleaver gain; performance; simulation results; soft output detectors/decoders; user density; Concatenated codes; Convolutional codes; Detectors; Disk recording; Error analysis; Gain; Iterative decoding; Magnetic recording; Maximum likelihood decoding; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-4788-9

Type

conf

DOI

10.1109/ICC.1998.685151

Filename

685151