Long Density Parity Check codes

Autors/ores

  • Tomàs Ortega University of California, Irvine

Paraules clau:

error correcting codes, expander graphs, communication theory

Resum

Els codis de Low Density Parity Check (LDPC), o codis de comprovació de paritat de baixa densitat, van ser proposats per Robert Gallager al 1963 a la seva tesi doctoral [3]. Tot i que la tesi demostra que existeixen LDPC asimptòticament òptims, es van abandonar pel seu cost computacional. Gràcies a la teoria de grafs expansors, sabem que poden ser codificats i descodificats en temps lineal. Aquest TFM [4] repassa la història dels LDPC i en presenta una nova família creada a partir d’estructures d’incidència anomenades Quadrangles Generalitzats.

Descàrregues

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Descàrregues

Publicat

2024-01-26

Com citar

Ortega, T. (2024). Long Density Parity Check codes. Reports@SCM, 8(1), 63–64. Retrieved from https://revistes.iec.cat/index.php/reports/article/view/151071

Número

Vol. 8 Núm. 1 (2023)

Secció

Extended abstracts

Llicència

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