MOSTARI, Latifa University of Djillali Liabès - Communication networks, Structures and Multi-media Laboratory, Algeria , MELIANI, Rachida University of Djillali Liabès - Communication networks, Structures and Multi-media Laboratory, Algeria , BOUNOUA, Abdennace University of Djillali Liabès - Communication networks, Structures and Multi-media Laboratory, Algeria

Iterative Effect on LDPC Code Performance

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The introduction of the turbo-codes in the early 90’s and, more generally of the iterative principle applied to the treatment of the signal, revolutionized the manner of improving a numerical communication system. This notable projection allowed the rediscovery of the error correcting codes invented by R. Gallager in 1963, called Low-Density Parity-Check codes (LDPC). These codes will be studied in this paper and more particularly the regular LDPC codes and its iterative effect on the performances of these codes on a gaussian transmission channel.

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LDPC code , gaussian channel , iterative decoder , belief propagation algorithm , Log , Likelihood Ratio (LLR)

Mediterranean Telecommunications Journal

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