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Application of MTR soft-decision decoding in multiple-head magnetic recording systems

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Abstract

Application of a simple approach for the soft-decision decoding of Maximum-Transition-Run (MTR) codes has been presented in this paper. A lowdemanded hardware realization have been proposed for soft-decision decoding in MTR basic AND, OR and XOR logic circuits. The suggested approach is explored over the two-track, two-head E2PR4 partial response magnetic recording system. The overall two-track channel detection complexity reduction of 41·9% is offered in simulation scheme, encoded by Low-Density Parity-Check (LDPC) code, serially concatenated with inner MTR. The 1·9 dB coding gain has been obtained, comparing to uncoded channel and assuming the AWGN noise presence.

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Authors and Affiliations

  1. Faculty of Technical sciences, University of Novi Sad, Trg D. Obradovic 6, 21000, Novi Sad, Serbia

    Nikola Djuric & Miroslav Despotovic

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  1. Nikola Djuric
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  2. Miroslav Despotovic
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Correspondence to Nikola Djuric.

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Djuric, N., Despotovic, M. Application of MTR soft-decision decoding in multiple-head magnetic recording systems. Sadhana 34, 381–392 (2009). https://doi.org/10.1007/s12046-009-0020-2

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  • DOI: https://doi.org/10.1007/s12046-009-0020-2

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