• DocumentCode
    800688
  • Title

    A Note on “Signal-to-Noise Ratio Mismatch for Low-Density Parity-Check Coded Magnetic Recording Channels” by W. Tan and J. R. Cruz

  • Author

    Saeedi, Hamid ; Banihashemi, Amir H.

  • Author_Institution
    Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, Ont.
  • Volume
    42
  • Issue
    11
  • fYear
    2006
  • Firstpage
    3765
  • Lastpage
    3766
  • Abstract
    In this letter, we prove that the minimum signal-to-noise ratio (SNR) threshold of the iterative belief propagation algorithm for a low-density parity-check (LDPC) coded magnetic recording channel is obtained when the SNR mismatch factor is half the ratio of variance to mean for the Gaussian distribution at the channel output. This result was first observed by Tan and Cruz empirically
  • Keywords
    Gaussian distribution; iterative methods; magnetic recording noise; parity check codes; Gaussian distribution; LDPC; SNR mismatch factor; iterative belief propagation algorithm; low-density parity-check code; magnetic recording channels; signal-to-noise ratio mismatch; AWGN; Additive white noise; Belief propagation; Bit error rate; Broadband communication; Gaussian noise; Iterative algorithms; Magnetic recording; Parity check codes; Signal to noise ratio; Low-density parity-check (LDPC) codes; magnetic recording channels (MRC); signal-to-noise ratio (SNR) mismatch;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2006.880998
  • Filename
    1715688
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=800688