Good LDPC codes based on very simple component codes
Marco Baldi, Giovanni Cancellieri, Franco Chiaraluce · Università Politecnica delle Marche (Università Politecnica delle Marche) · 2009
We describe a novel approach for designing low- density parity-check (LDPC) codes based on a particular class of very simple component codes, that are a generalization of single parity-check (SPC) codes. The proposed method allows the design of LDPC codes with good performance while requiring encoder circuits with easy implementation. In addition, the proposed technique permits us to obtain rate-compatible codes, that can be included in automatic repeat request schemes. The proposed codes can also be used as components in long LDPC product codes, thus allowing a further reduction in the encoding complexity. I. I NTRODUCTION