A Modification of Generalized Concatenated Codes and its Applications

We propose a modification of generalized concatenated codes, which allows the construction of some best known binary linear codes in a very simple way. As another application we show that by using this method we can generate a big class of optimal linear unequal error protection codes (LUEP codes) very easily and that most of the constructions given by van Gils [1] are special cases of this new method. A big advantage of our method is, that all constructed codes can be decoded very easily by the well known Blokh-Z yablov-Zinov'ev algorithm with a slightly modified metric.