LDPC codes based on serially concatenated multiple parity-check codes

Authors:
Marco Baldi;Giovanni Cancellieri;Andrea Carassai;Franco Chiaraluce
Affiliations:
Dipartimento di Ingegneria Biomedica, Elettronica e Telecomunicazioni, Università Politecnica delle Marche, Ancona, Italy;Dipartimento di Ingegneria Biomedica, Elettronica e Telecomunicazioni, Università Politecnica delle Marche, Ancona, Italy;Centro Radioelettrico Sperimentale Guglielmo Marconi, Trieste, Italy;Dipartimento di Ingegneria Biomedica, Elettronica e Telecomunicazioni, Università Politecnica delle Marche, Ancona, Italy
Venue:
IEEE Communications Letters
Year:
2009

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Abstract

This letter proposes a new class of serially concatenated codes that can be viewed as Low-Density Parity-Check (LDPC) codes. They are derived from Multiple Serially Concatenated Single Parity-Check (M-SC-SPC) codes, but they use different components, that we call Multiple Parity-Check (MPC) codes. In comparison with M-SC-SPC codes, the new scheme achieves better performance with similar complexity. The proposed codes can represent an alternative to the well-known family of Repeat Accumulate (RA) codes, being based on the same principles.