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

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...

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Bibliographic Details
Published in1998 IEEE International Conference on Communications Vol. 2; pp. 947 - 951 vol.2
Main Author Ryan, W.E.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1998
Subjects
Concatenated codes
Convolutional codes
Detectors
Disk recording
Error analysis
Gain
Iterative decoding
Magnetic recording
Maximum likelihood decoding
Turbo codes
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Summary: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/sub 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/sup -5/ for the rate 4/5 and 8/9 codes, whereas the rate 16/17 code achieves a gain of 6.5 dB.
ISBN:0780347889
9780780347885
DOI:10.1109/ICC.1998.685151