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Conference papers
Non-surjective finite alphabet iterative decoders
Abstract : This paper introduces a new theoretical framework, akin to the use of imprecise message storage in Low Density Parity Check (LDPC) decoders, which is seen as an enabler for cost-effective hardware designs. The proposed framework is the one of Non-Surjective Finite Alphabet Iterative Decoders (NS-FAIDs), and it is shown to provide a unified approach for several designs previously proposed in the literature. NS-FAIDs are optimized by density evolution for WiMAX irregular LDPC codes and we show they provide different trade-offs between hardware complexity and decoding performance. In particular, we derive a set of 27 NS-FAIDs that provide decoding gains up to 0.36 dB, while yielding a memory / interconnect reduction up to 25% / 30% compared to the Min-Sum decoder.
Cited literature [13 references]
https://hal-cea.archives-ouvertes.fr/cea-01573434
Contributor : Raffaele d'Errico <>
Submitted on : Wednesday, August 9, 2017 - 3:29:09 PM
Last modification on : Monday, January 25, 2021 - 3:16:04 PM
Contributor : Raffaele d'Errico <>
Submitted on : Wednesday, August 9, 2017 - 3:29:09 PM
Last modification on : Monday, January 25, 2021 - 3:16:04 PM
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