Construction of Rate-Compatible LDPC Codes Utilizing Information Shortening and Parity Puncturing
© T. Tian and C. R. Jones 2005
Received: 27 January 2005
Published: 12 December 2005
This paper proposes a method for constructing rate-compatible low-density parity-check (LDPC) codes. The construction considers the problem of optimizing a family of rate-compatible degree distributions as well as the placement of bipartite graph edges. A hybrid approach that combines information shortening and parity puncturing is proposed. Local graph conditioning techniques for the suppression of error floors are also included in the construction methodology.
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