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Performance of LDPC with Message-Passing Channel Detector for Perpendicular Magnetic Recording Channel  

Park, Dong-Hyuk (숭실대학교 정보통신전자공학부 정보저장 및 통신 연구실)
Lee, Jae-Jin (숭실대학교 정보통신전자공학부 정보저장 및 통신 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.4C, 2008 , pp. 299-304 More about this Journal
Abstract
For perpendicular magnetic recording channels, it is hard to expect improving the performance by using the PRML or NPML. Hence, we exploit LDPC code to improve the performance. In this paper, we examine a single message-passing detector/decoder matched to the combination of a perpendicular magnetic recording channel detector and an LDPC code decoder. We examine the performance of channel iteration with joint LDPC code on perpendicular magnetic recording channel, and simplify the complexity of the message-passing detector algorithm.
Keywords
LDPC code; message-passing; PMR; channel iteration; iterative decoding;
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1 T. J. Richardson and R. L. Urbanke, "Efficient encoding of low-density parity-check codes," IEEE Trans. Inform. Theory, Vol.47, No.2, pp.638-656, Feb. 2001   DOI   ScienceOn
2 B. M. Kurkoski, P. H. Siegel and J. K. Wolf, "Joint message-passing decoding of LDPC codes and partial-response channels," IEEE Trans. Inform. Theory, Vol.48, No.6, pp.1410-1422, June 2002   DOI   ScienceOn
3 A. J. Viterbi, "An Intuitive Justification and a simplified implementation of the MAP decoder for convolutional codes," IEEE Journal on Selected Areas in Comm. Vol.16, No.2, pp.260-264, Feb 1998   DOI   ScienceOn
4 R. G. Gallager, Low-density parity check codes, Cambridge, MA: MIT Press, 1963
5 X. Hu and B. V. K. V. Kumar, "Evaluation of low-density parity-check codes on perpendicular magnetic recording model," IEEE Trans. Mag., Vol.43, No.2, pp.727-732, Feb. 2007   DOI   ScienceOn