Low-Density Parity-Check Codes - Couverture souple

Gallager, Robert G.

Couverture souple

ISBN 10 : 0262571773 ISBN 13 : 9780262571777

Editeur : MIT Press, 2003

Synopsis

This is a complete presentation of all important theoretical and experimental work done on low-density codes. Low-density coding is one of the three techniques thus far developed for efficient communication over noisy channels with an arbitrarily low probability of error. A principal result of information theory is that if properly coded information is transmitted over a noisy channel at a rate below channel capacity, the probability of error can be made to approach zero exponentially with the code length. Any practical use of this theorem, however, requires a coding scheme in which the cost of storage and computation equipment grows slowly with code length. The present book analyzes a class of coding schemes for which costs grow approximately linearly with code length. It demonstrates that error probability approaches zero exponentially with a root of the block length and cites experimental evidence that this coding scheme has profitable aplicability in many communications situations.

A propos du livre

À propos de l?auteur

Robert Gallagher is Professor Emeritus at the Research Laboratory of Electronics at MIT.

Détails de l'édition

• Éditeur: MIT Press
• Date d'édition: 2003
• Langue: anglais
• ISBN 10: 0262571773
• ISBN 13: 9780262571777
• Reliure: Broché
• Nombre de pages: 116
• Coordonnées du fabricant: non disponible
• Personne responsable: gpsr@libri.de; gpsr@libri.de; ; Friedensallee 273; Hamburg; 22763; Allemagne