Optimizing the Free Distance of Error-Correcting Variable-Length Codes - Archive ouverte HAL
Communication Dans Un Congrès Année : 2010

Optimizing the Free Distance of Error-Correcting Variable-Length Codes

Résumé

This paper considers the optimization of Error- Correcting Variable-Length Codes (EC-VLC), which are a class of joint-source channel codes. The aim is to find a prefix-free codebook with the largest possible free distance for a given set of codeword lengths, ℓ = (ℓ1, ℓ2, . . . , ℓM). The proposed approach consists in ordering all possible codebooks associated to ℓ on a tree, and then to apply an efficient branch-and-prune algorithm to find a codebook with maximal free distance. Three methods for building the tree of codebooks are presented and their efficiency is compared.
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Dates et versions

hal-00549232 , version 1 (21-12-2010)

Identifiants

  • HAL Id : hal-00549232 , version 1

Citer

Amadou Diallo, Claudio Weidmann, Michel Kieffer. Optimizing the Free Distance of Error-Correcting Variable-Length Codes. International Workshop on Multimedia Signal Processing, Oct 2010, Saint Malo, France. pp.4. ⟨hal-00549232⟩
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