Braided Convolutional Codes - A Class of Spatially Coupled Turbo-Like Codes

Michael Lentmaier, Saeedeh Moloudi, Alexandre Graell i Amat

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review

9 Citeringar (SciVal)
231 Nedladdningar (Pure)

Sammanfattning

In this paper, we investigate the impact of spatial coupling on the thresholds of turbo-like codes. Parallel concatenated and serially concatenated convolutional codes as well as braided convolutional codes (BCCs) are compared by means of an exact density evolution (DE) analysis for the binary erasure channel (BEC). We propose two extensions of the original BCC ensemble to improve its threshold and demonstrate that their BP thresholds approach the maximum-a posteriori (MAP) threshold of the uncoupled ensemble. A comparison of the different ensembles shows that parallel concatenated ensembles can be outperformed by both serially concatenated and BCC ensembles, although they have the best BP thresholds in the uncoupled case.
Originalspråkengelska
Titel på värdpublikation[Host publication title missing]
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
StatusPublished - 2014
EvenemangInternational Conference on Signal Processing and Communications (SPCOM) - Bangalore, Indien
Varaktighet: 2014 juli 222014 juli 25

Konferens

KonferensInternational Conference on Signal Processing and Communications (SPCOM)
Land/TerritoriumIndien
OrtBangalore
Period2014/07/222014/07/25

Ämnesklassifikation (UKÄ)

  • Elektroteknik och elektronik

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