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Spatially Coupled Turbo Codes: Principles and Finite Length Performance

Graell i Amat, Alexandre; Moloudi, Saeedeh LU and Lentmaier, Michael LU (2014) The Eleventh International Symposium on Wireless Communication Systems (ISWCS) In 11th International Symposium on Wireless Communications Systems, ISWCS 2014 p.883-887
Abstract
In this paper, we give an overview of spatially coupled turbo codes (SC-TCs), the spatial coupling of parallel and serially concatenated convolutional codes, recently introduced by the authors. For presentation purposes, we focus on spatially coupled serially concatenated codes (SC-SCCs). We review the main principles of SC-TCs and discuss their exact density evolution (DE) analysis on the binary erasure channel. We also consider the construction of a family of rate-compatible SC-SCCs with simple 4-state component encoders. For all considered code rates, threshold saturation of the belief propagation (BP) to the maximum a posteriori threshold of the uncoupled ensemble is demonstrated, and it is shown that the BP threshold approaches the... (More)
In this paper, we give an overview of spatially coupled turbo codes (SC-TCs), the spatial coupling of parallel and serially concatenated convolutional codes, recently introduced by the authors. For presentation purposes, we focus on spatially coupled serially concatenated codes (SC-SCCs). We review the main principles of SC-TCs and discuss their exact density evolution (DE) analysis on the binary erasure channel. We also consider the construction of a family of rate-compatible SC-SCCs with simple 4-state component encoders. For all considered code rates, threshold saturation of the belief propagation (BP) to the maximum a posteriori threshold of the uncoupled ensemble is demonstrated, and it is shown that the BP threshold approaches the Shannon limit as the coupling memory increases. Finally we give some simulation results for finite lengths. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
spatial coupling, turbo codes, serial concatenation, parallel concatenation, convolutional codes
in
11th International Symposium on Wireless Communications Systems, ISWCS 2014
pages
883 - 887
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
The Eleventh International Symposium on Wireless Communication Systems (ISWCS)
external identifiers
  • WOS:000363906500170
  • Scopus:84911956822
ISBN
9781479958641
DOI
10.1109/ISWCS.2014.6933478
language
English
LU publication?
yes
id
85032b61-b81e-43f3-82c4-33c9cf8dcbdd (old id 4648140)
date added to LUP
2014-09-22 12:10:21
date last changed
2016-10-13 04:43:30
@misc{85032b61-b81e-43f3-82c4-33c9cf8dcbdd,
  abstract     = {In this paper, we give an overview of spatially coupled turbo codes (SC-TCs), the spatial coupling of parallel and serially concatenated convolutional codes, recently introduced by the authors. For presentation purposes, we focus on spatially coupled serially concatenated codes (SC-SCCs). We review the main principles of SC-TCs and discuss their exact density evolution (DE) analysis on the binary erasure channel. We also consider the construction of a family of rate-compatible SC-SCCs with simple 4-state component encoders. For all considered code rates, threshold saturation of the belief propagation (BP) to the maximum a posteriori threshold of the uncoupled ensemble is demonstrated, and it is shown that the BP threshold approaches the Shannon limit as the coupling memory increases. Finally we give some simulation results for finite lengths.},
  author       = {Graell i Amat, Alexandre and Moloudi, Saeedeh and Lentmaier, Michael},
  isbn         = {9781479958641},
  keyword      = {spatial coupling,turbo codes,serial concatenation,parallel concatenation,convolutional codes},
  language     = {eng},
  pages        = {883--887},
  publisher    = {ARRAY(0xba716a0)},
  series       = {11th International Symposium on Wireless Communications Systems, ISWCS 2014},
  title        = {Spatially Coupled Turbo Codes: Principles and Finite Length Performance},
  url          = {http://dx.doi.org/10.1109/ISWCS.2014.6933478},
  year         = {2014},
}