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Error Floor Approximation for LDPC Codes in the AWGN Channel
[article]
2013
arXiv
pre-print
This paper addresses the prediction of error floors of low-density parity-check (LDPC) codes with variable nodes of constant degree in the additive white Gaussian noise (AWGN) channel. Specifically, we focus on the performance of the sum-product algorithm (SPA) decoder formulated in the log-likelihood ratio (LLR) domain. We hypothesize that several published error floor levels are due to the manner in which decoder implementations handled the LLRs at high SNRs. We employ an LLR-domain SPA
arXiv:1202.2826v2
fatcat:4a7u4qhrojcsfhhclhfbsc4r3y