Skip to main content Accessibility help
×
Hostname: page-component-5bbb9b7966-pzgb8 Total loading time: 0 Render date: 2026-02-25T02:54:25.097Z Has data issue: false hasContentIssue false

8 - Maximum-Likelihood LDPC Decoder Analysis

Published online by Cambridge University Press:  aN Invalid Date NaN

Enrico Paolini
Affiliation:
University of Bologna
Gianluigi Liva
Affiliation:
German Aerospace Center, Wessling
Balázs Matuz
Affiliation:
Huawei Munich Research Center
Marco Chiani
Affiliation:
University of Bologna
Get access

Summary

Maximum-likelihood LDPC decoder analysis. In Chapter 8, the performance of LDPC codes under ML decoding is analyzed. ML decoding is intended here either as the block-wise or the symbol-wise decoding criterion (see Section 2.2). More specifically, the asymptotic analysis on the ML decoding threshold addresses the performance in terms of symbol-wise ML decoding, whereas finite-length bounds are provided for the block error probability under block-wise ML decoding. While the focus is on unstructured LDPC code ensembles, the results in this chapter can be considered to a large extent valid for other LDPC code ensembles.

Information

Type
Chapter
Information
Publisher: Cambridge University Press
Print publication year: 2026

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Book purchase

Temporarily unavailable

References

Ashikhmin, A., Kramer, G., and ten Brink, S., “Extrinsic information transfer functions: Model and erasure channel properties,” IEEE Trans. Inf. Theory, vol. 50, no. 11, pp. 26572673, Nov. 2004.CrossRefGoogle Scholar
Measson, C., Montanari, A., Richardson, T., and Urbanke, R., “Life above threshold: From list decoding to area theorem and MSE,” in Proc. IEEE Inf. Theory Workshop, San Antonio, TX, USA, Oct. 2004.Google Scholar
Richardson, T. and Urbanke, R., Modern coding theory. New York, NY, USA: Cambridge University Press, 2008.CrossRefGoogle Scholar
Lentmaier, M., Tavares, M. B. S., and Fettweis, G. P., “Exact erasure channel density evolution for protograph-based generalized LDPC codes,” in Proc. IEEE Int. Symp. Inf. Theory, Seoul, South Korea, June/July 2009, pp. 566570.Google Scholar
Measson, C., Montanari, A., and Urbanke, R., “Maxwell construction: The hidden bridge between iterative and maximum a posteriori decoding,” IEEE Trans. Inf. Theory, vol. 54, no. 12, pp. 52775307, Dec. 2008.10.1109/TIT.2008.2006466CrossRefGoogle Scholar
Measson, C., Montanari, A., and Urbanke, R., “Asymptotic rate versus design rate,” in Proc. IEEE Int. Symp. Inf. Theory, Nice, France, June 2007.Google Scholar
Wang, C. and Pfister, H. D., “Upper bounds on the MAP threshold of iterative decoding systems with erasure noise,” in Proc. IEEE Int. Symp. Turbo Codes and Rel. Topics, Lausanne, Switzerland, Sep. 2008, pp. 712.Google Scholar
Measson, C., Montanari, A., Richardson, T. J., and Urbanke, R., “The generalized area theorem and some of its consequences,” IEEE Trans. Inf. Theory, vol. 55, no. 11, pp. 47934821, Nov. 2009.CrossRefGoogle Scholar
Guo, D., Shamai, S., and Verdu, S., “Mutual information and minimum mean-square error in Gaussian channels,” IEEE Trans. Inf. Theory, vol. 51, no. 4, pp. 12611282, Apr. 2005.CrossRefGoogle Scholar
Bhattad, K. and Narayanan, K. R., “An MSE-based transfer chart for analyzing iterative decoding schemes using a Gaussian approximation,” IEEE Trans. Inf. Theory, vol. 53, no. 1, pp. 2238, Jan. 2007.10.1109/TIT.2006.887074CrossRefGoogle Scholar
Kudekar, S., Kumar, S., Mondelli, M., Pfister, H. D., Şaşoǧlu, E., and Urbanke, R. L., “Reed–Muller codes achieve capacity on erasure channels,” IEEE Trans. Inf. Theory, vol. 63, no. 7, pp. 42984316, July 2017.CrossRefGoogle Scholar
Measson, C., “Conservation laws for coding,” PhD dissertation, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland, 2006.Google Scholar
Di, C., Proietti, D., Telatar, I., Richardson, T., and Urbanke, R., “Finite-length analysis of low-density parity-check codes on the binary erasure channel,” IEEE Trans. Inf. Theory, vol. 48, no. 6, pp. 15701579, June 2002.Google Scholar
Liva, G., Paolini, E., and Chiani, M., “Bounds on the error probability of block codes over the q-ary erasure channel,” IEEE Trans. Commun., vol. 61, no. 6, pp. 21562165, June 2013.10.1109/TCOMM.2013.032013.120504CrossRefGoogle Scholar
Fossorier, M., “Universal burst error correction,” in Proc. IEEE Int. Symp. Inf. Theory, 2006, pp. 19691973.Google Scholar
Miller, G. and Burshtein, D., “Bounds on the maximum-likelihood decoding error probability of low-density parity-check codes,” IEEE Trans. Inf. Theory, vol. 47, no. 11, pp. 26962710, Nov. 2001.10.1109/18.959254CrossRefGoogle Scholar
Burshtein, D. and Miller, G., “Asymptotic enumeration methods for analyzing LDPC codes,” IEEE Trans. Inf. Theory, vol. 50, no. 6, pp. 11151131, June 2004.10.1109/TIT.2004.828064CrossRefGoogle Scholar
Paolini, E. and Liva, G., “A lower bound on the error exponent of linear block codes over the erasure channel,” in Proc. IEEE Int. Symp. Inf. Theory, Paris, France, July 2019.Google Scholar

Accessibility standard: WCAG 2.2 A

Why this information is here

This section outlines the accessibility features of this content - including support for screen readers, full keyboard navigation and high-contrast display options. This may not be relevant for you.

Accessibility Information

The PDF of this book complies with version 2.2 of the Web Content Accessibility Guidelines (WCAG), offering more comprehensive accessibility measures for a broad range of users and meets the basic (A) level of WCAG compliance, addressing essential accessibility barriers.

Content Navigation

Table of contents navigation
Allows you to navigate directly to chapters, sections, or non‐text items through a linked table of contents, reducing the need for extensive scrolling.
Index navigation
Provides an interactive index, letting you go straight to where a term or subject appears in the text without manual searching.

Reading Order & Textual Equivalents

Single logical reading order
You will encounter all content (including footnotes, captions, etc.) in a clear, sequential flow, making it easier to follow with assistive tools like screen readers.
Short alternative textual descriptions
You get concise descriptions (for images, charts, or media clips), ensuring you do not miss crucial information when visual or audio elements are not accessible.

Save book to Kindle

To save this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Available formats
×

Save book to Dropbox

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

Available formats
×