Turbo coding for decision feedback equalized magnetic recording channels

Author

Zhao, Fang ; Mathew, George ; Farhang-Boroujeny, B.

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

Volume

9

fYear

2001

fDate

2001

Firstpage

2721

Abstract

The application of iterative detection using turbo codes for signal detection in magnetic recording channels has become a topic of intense research. Interesting results have been reported for partial response equalized recording channels. This paper investigates the performance of turbo codes on decision feedback equalized (DFE) recording channels. The channel detector used is a soft-in soft-out parallel DFE (PDFE) detector. Simulation results shows a coding gain of more than 3 dB at a bit error rate of 10^-6. Further, the error propagation in PDFE has been significantly minimized by the de-interleaver between PDFE and turbo decoder, and it does not influence the overall burst error performance

Keywords

channel coding; decision feedback equalisers; decoding; digital magnetic recording; error statistics; partial response channels; signal detection; turbo codes; 3 dB; DFE recording channels; PDFE detector; bit error rate; burst error performance; channel detector; de-interleaver; decision feedback equalized magnetic recording channels; error propagation; iterative detection; partial response equalized recording channels; signal detection; soft-in soft-out parallel DFE detector; turbo coding; turbo decoder; AWGN; Bit error rate; Concatenated codes; Decision feedback equalizers; Detectors; Intersymbol interference; Iterative decoding; Magnetic recording; Signal detection; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2001. ICC 2001. IEEE International Conference on

Conference_Location

Helsinki

Print_ISBN

0-7803-7097-1

Type

conf

DOI

10.1109/ICC.2001.936645

Filename

936645