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Turbo codes: Correlated extrinsic information and its impact on iterative decoding performance

Hokfelt, Johan LU ; Edfors, Ove LU and Maseng, Torleiv LU (1999) IEEE Vehicular Technology Conference, 1999 In Proc. IEEE Vehicular Technology Conference 3. p.1871-1875
Abstract
The performance of a turbo code is dependent on two properties of the code: its distance spectrum and its suitability to be iteratively decoded. The performance of iterative decoding depends on the quality of the extrinsic inputs; badly correlated extrinsic inputs can deteriorate the performance. While most turbo coding literature assumes that the extrinsic information is uncorrelated, we investigate these correlation properties. An iterative decoding suitability measure is presented, intended to serve as an indication on the degree of correlation between extrinsic inputs. The suitability measure can be used as a complement to the weight distribution when ranking interleavers
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
in
Proc. IEEE Vehicular Technology Conference
volume
3
pages
5 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
IEEE Vehicular Technology Conference, 1999
external identifiers
  • Scopus:0032632564
ISBN
0-7803-5565-2
DOI
10.1109/VETEC.1999.778362
language
English
LU publication?
yes
id
37db93f9-a475-45a4-8d11-213fad03e5e9 (old id 1036023)
date added to LUP
2008-02-27 10:41:23
date last changed
2016-10-13 04:50:53
@misc{37db93f9-a475-45a4-8d11-213fad03e5e9,
  abstract     = {The performance of a turbo code is dependent on two properties of the code: its distance spectrum and its suitability to be iteratively decoded. The performance of iterative decoding depends on the quality of the extrinsic inputs; badly correlated extrinsic inputs can deteriorate the performance. While most turbo coding literature assumes that the extrinsic information is uncorrelated, we investigate these correlation properties. An iterative decoding suitability measure is presented, intended to serve as an indication on the degree of correlation between extrinsic inputs. The suitability measure can be used as a complement to the weight distribution when ranking interleavers},
  author       = {Hokfelt, Johan and Edfors, Ove and Maseng, Torleiv},
  isbn         = {0-7803-5565-2},
  language     = {eng},
  pages        = {1871--1875},
  publisher    = {ARRAY(0x7dff018)},
  series       = {Proc. IEEE Vehicular Technology Conference},
  title        = {Turbo codes: Correlated extrinsic information and its impact on iterative decoding performance},
  url          = {http://dx.doi.org/10.1109/VETEC.1999.778362},
  volume       = {3},
  year         = {1999},
}