Projeto de EntrelaÃadores para cÃdigos turbo

AUTOR(ES)

Marcel Jar e Silva

DATA DE PUBLICAÇÃO

2006

RESUMO

Interleavers perform a central role in the near channel capacity performance of turbo codes. Besides been introduced as simple random permutations, nowadays there are several classes of interleavers like s-random, DRP, polynomial, and quasi-cyclic that provide a better performance for turbo codes in an AWGN channel and/or are simpler to store. This work has two main goals. The first one is to perform comparisons between interleaver classes which have the property of memory economy for their allocation, this study aim to fill a lack in the literature, which normally only compares interleavers of new classes with s-random interleavers. The second goal is to develop a new class of interleavers which also have the property of memory economy, besides the fact that it guarantees high spread factors. Interleavers that belong to this class are called quasi-block interleavers

ASSUNTO(S)

turbo codes entrelaÃadores iterative decoding engenharia eletrica cÃdigos turbo interleavers decodificaÃÃo iterativa

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