The dimensions of LU(3, q) codes

Abstract

A family of LDPC codes, called LU(3, q) codes, has been constructed from q-regular bipartite graphs. Recently, P. Sin and Q. Xiang determined the dimensions of these codes in the case that q is a power of an odd prime. They also obtained a lower bound for the dimension of an LU(3, q) code when q is a power of 2. In this paper we prove that this lower bound… (More)
DOI: 10.1016/j.jcta.2008.12.007

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