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Erschienen in: Telecommunication Systems 3/2017

06.06.2016

Turbo coding for the noisy 2-user binary adder channel with punctured convolutional codes

verfasst von: Maria de Lourdes M. G. Alcoforado, Jamerson J. C. B. de Jesus, Valdemar C. da Rocha Jr.

Erschienen in: Telecommunication Systems | Ausgabe 3/2017

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Abstract

This paper investigates the use of punctured recursive systematic convolutional codes for turbo coding in a 2-user binary adder channel (2-BAC) in the presence of additive white Gaussian noise, aiming to achieve a higher transmission sum rate with reduced decoding complexity. The encoders for the 2-BAC are assumed to be block synchronized and to employ identical puncturing patterns. Iterative decoding combining the Bahl Cocke Jelinek Raviv algorithm and a two-user punctured trellis is employed. For each user and for a fixed puncturing pattern, random interleavers of length 256 bits or 1024 bits, respectively, are simulated and corresponding curves relating bit error rate versus signal to noise ratio are presented for performance comparison purposes. Computer simulation indicates that the loss in performance of a punctured turbo code can be negligible when longer interleavers are used for both users, similarly to the single user case.

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Metadaten
Titel
Turbo coding for the noisy 2-user binary adder channel with punctured convolutional codes
verfasst von
Maria de Lourdes M. G. Alcoforado
Jamerson J. C. B. de Jesus
Valdemar C. da Rocha Jr.
Publikationsdatum
06.06.2016
Verlag
Springer US
Erschienen in
Telecommunication Systems / Ausgabe 3/2017
Print ISSN: 1018-4864
Elektronische ISSN: 1572-9451
DOI
https://doi.org/10.1007/s11235-016-0185-z

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