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Improved Construction of Irregular Progressive Edge-Growth Tanner Graphs

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3 Author(s)
Jesus Martinez-Mateo ; Facultad de Informatica, Universidad Politecnica de Madrid, Madrid, Spain ; David Elkouss ; Vicente Martin

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.

Published in:

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