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ThinkMind // CTRQ 2015, The Eighth International Conference on Communication Theory, Reliability, and Quality of Service // View article ctrq_2015_1_30_70017


The min-max in LC Versus the max-log MAP in LC Method for Soft-Decision Decoding of MTR Codes

Authors:
Nikola Djuric
Vojin Senk

Keywords: soft-decision decoding; constrained coding; MTR codes; LDPC codes

Abstract:
The approaches for soft-decision decoding of maximum-transition-run (MTR) codes have been extensively researched lately. Two different methods, named as min-max in LC and max-log MAP in LC have emerged as a fairly suitable for MTR code utilization in magnetic recording systems. Both methods were designed to enable the propagation of the soft-values through the logic circuits of the MTR decoder, allowing the concatenation of MTR code with some powerful error-correcting codes, such as the low-density parity-check (LDPC) codes. In this paper, the min-max in LC versus the max-log MAP in LC approach is considered in the framework of simple and the straightforward LDPC-MTR concatenation over E2PR4 magnetic recording channel. Both methods show nearly the same coding gain of 2 dB at BER = 10-5.

Pages: 13 to 17

Copyright: Copyright (c) IARIA, 2015

Publication date: April 19, 2015

Published in: conference

ISSN: 2308-4022

ISBN: 978-1-61208-402-2

Location: Barcelona, Spain

Dates: from April 19, 2015 to April 24, 2015

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