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http://arxiv.org/pdf/1208.1326...
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arXiv.org e-Print Archive
Preprint . 2012
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https://doi.org/10.1109/glocom...
Article . 2012 . Peer-reviewed
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https://dx.doi.org/10.48550/ar...
Article . 2012
License: arXiv Non-Exclusive Distribution
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Conference object . 2017
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Article . 2018
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https://dx.doi.org/10.1109/glo...
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Numerical issues affecting LDPC error floors

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Conference object 01 Dec 2012Embargo end date: 01 Jan 2012Publisher:IEEEJournal:2012 IEEE Global Communications Conference (GLOBECOM)Funded by:NSF | CIF: Small: Coding for No..., NSF | Code Representation and P...
Authors: Brian K. Butler; Paul H. Siegel;

doi: 10.1109/glocom.2012.6503607 , 10.48550/arxiv.1208.1326

arXiv: 1208.1326

Numerical issues affecting LDPC error floors

Abstract

Numerical issues related to the occurrence of error floors in floating-point simulations of belief propagation (BP) decoders are examined. Careful processing of messages corresponding to highly-certain bit values can sometimes reduce error floors by several orders of magnitude. Computational solutions for properly handling such messages are provided for the sum-product algorithm (SPA) and several variants.

7 pages, 5 figures. Submitted to IEEE Globecom (Selected Area of Communications Data Storage Track)

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Keywords

FOS: Computer and information sciences, Computer Science - Information Theory, Information Theory (cs.IT), FOS: Mathematics, Mathematics - Numerical Analysis, Numerical Analysis (math.NA)

  • BIP!
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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    		 8
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    		 Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
8
Average
Top 10%
Average
Green