We propose a windowed decoding scheme for protograph-based LDPC convolutional codes (LDPC-CC) that allows us to efficiently trade-off decoding performance for gains in latency. We study the performance of regular LDPC-CC with the windowed decoding scheme. In particular, we show that the class of LDPC-CC proposed in the literature with good belief propagation performance is ill-suited for windowed decoding. Further, we establish properties of code ensembles with good windowed decoding performance over erasure channels with and without memory.

Latency constrained protograph-based LDPC-CC

CORAZZA, GIOVANNI EMANUELE;PAPALEO, MARCO;VANELLI CORALLI, ALESSANDRO;
2010

Abstract

We propose a windowed decoding scheme for protograph-based LDPC convolutional codes (LDPC-CC) that allows us to efficiently trade-off decoding performance for gains in latency. We study the performance of regular LDPC-CC with the windowed decoding scheme. In particular, we show that the class of LDPC-CC proposed in the literature with good belief propagation performance is ill-suited for windowed decoding. Further, we establish properties of code ensembles with good windowed decoding performance over erasure channels with and without memory.
6th International symposium on turbo codes & iterative information processing
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G. E. Corazza; A. R. Iyengar; M. Papaleo; P. H. Siegel; A. Vanelli-Coralli; J. K. Wolf
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/100183
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