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Improved Construction of Irregular Progressive Edge-Growth Tanner Graphs

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3 Author(s)
Martinez-Mateo, J. ; Fac. de Inf., Univ. Politec. de Madrid, Madrid, Spain ; Elkouss, D. ; Martin, V.

The progressive edge-growth algorithm is a well-known procedure to construct regular and irregular low-density parity-check codes. In this paper, we propose a modification of the original algorithm that improves the performance of these codes in the waterfall region when constructing codes complying with both, check and symbol node degree distributions. The proposed algorithm is thus interesting if a family of irregular codes with a complex check node degree distribution is used.

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Communications Letters, IEEE  (Volume:14 ,  Issue: 12 )