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Decoding of NB-LDPC codes over Subfields

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posted on 2020-07-10, 04:20 authored by V B Wijekoon, Emanuele Viterbo, Yi Hong
In this paper, we present a novel method to expand a graph over a finite field into a larger one over one of
the original field’s subfields. This allows a number of different graph expansions for any given graph.
These expansions can be used in various applications, and we focus specifically on the case of decoding
NB-LDPC codes. Using the novel expanded graphs, it is possible to reduce decoding complexity of NB-
LDPC codes significantly with minimal performance losses.


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Submitting Author's Institution

Monash University

Submitting Author's Country

  • Australia

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