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Non-uniform spatial coupling

Abstract : A new method for spatial coupling of low-density parity-check ensembles is proposed. The method is inspired from overlapped layered coding. Edges of local ensembles and those defining the spatial coupling are separately built. The new method allows the construction of non-uniform coupling chains with near-Shannon spatially-varying thresholds under iterative decoding. A direct application of non-uniform spatial coupling is unequal error protection of information.
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https://hal-cea.archives-ouvertes.fr/cea-01841684
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Submitted on : Tuesday, July 17, 2018 - 2:36:06 PM
Last modification on : Monday, February 10, 2020 - 6:13:48 PM

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F. Jardel, J.J. Boutros. Non-uniform spatial coupling. 2014 IEEE Information Theory Workshop (ITW 2014), Nov 2014, Hobart, TAS, Australia. pp.446-450, ⟨10.1109/ITW.2014.6970871⟩. ⟨cea-01841684⟩

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