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Typical performance of irregular LDGM codes for lossy compression

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1 Author(s)
Mimura, K. ; Grad. Sch. of Inf. Sci., Hiroshima City Univ., Hiroshima

We evaluate typical performance of irregular low-density generator-matrix (LDGM) codes, which is defined by sparse matrices with arbitrary irregular bit degree distribution and arbitrary check degree distribution, for lossy compression. We apply the replica method under one-step replica symmetry breaking (1RSB) ansatz to this problem.

Published in:

Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on

Date of Conference:

7-10 Dec. 2008