Concatenated coding and iterative SOVA decoding with PR4 signaling

Ali Ghrayeb; William E. Ryan

Concatenated coding and iterative SOVA decoding with PR4 signaling

Ali Ghrayeb^*, William E. Ryan

^*Corresponding author for this work

University of Arizona

Research output: Contribution to conference › Paper › peer-review

6 Citations (Scopus)

Abstract

We modify the iterative soft-output Viterbi algorithm (SOVA) for partial response (PR) channels and examine its performance for parallel and serial concatenated codes on a precoded Class IV partial response (PR4) channel. We present a SOVA that differs slightly from what appears in the literature and compare the performance of the two versions. Code rates of the form k₀/k₀+1 (k₀ = 4, 8, and 64) are considered. Our simulations indicate that the loss at P_b = 10^-5 suffered by the SOVA, relative to the APP algorithm, is at most 1.2 dB for parallel concatenations and at most 1.6 dB for serial concatenations.

Original language	English
Pages	597-601
Number of pages	5
Publication status	Published - 2000
Externally published	Yes
Event	2000 IEEE International Conference on Communications - New Orleans, LA, USA Duration: 18 Jun 2000 → 22 Jun 2000

Conference

Conference	2000 IEEE International Conference on Communications
City	New Orleans, LA, USA
Period	18/06/00 → 22/06/00

Cite this

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title = "Concatenated coding and iterative SOVA decoding with PR4 signaling",

abstract = "We modify the iterative soft-output Viterbi algorithm (SOVA) for partial response (PR) channels and examine its performance for parallel and serial concatenated codes on a precoded Class IV partial response (PR4) channel. We present a SOVA that differs slightly from what appears in the literature and compare the performance of the two versions. Code rates of the form k0/k0+1 (k0 = 4, 8, and 64) are considered. Our simulations indicate that the loss at Pb = 10-5 suffered by the SOVA, relative to the APP algorithm, is at most 1.2 dB for parallel concatenations and at most 1.6 dB for serial concatenations.",

author = "Ali Ghrayeb and Ryan, {William E.}",

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T1 - Concatenated coding and iterative SOVA decoding with PR4 signaling

AU - Ghrayeb, Ali

AU - Ryan, William E.

PY - 2000

Y1 - 2000

N2 - We modify the iterative soft-output Viterbi algorithm (SOVA) for partial response (PR) channels and examine its performance for parallel and serial concatenated codes on a precoded Class IV partial response (PR4) channel. We present a SOVA that differs slightly from what appears in the literature and compare the performance of the two versions. Code rates of the form k0/k0+1 (k0 = 4, 8, and 64) are considered. Our simulations indicate that the loss at Pb = 10-5 suffered by the SOVA, relative to the APP algorithm, is at most 1.2 dB for parallel concatenations and at most 1.6 dB for serial concatenations.

AB - We modify the iterative soft-output Viterbi algorithm (SOVA) for partial response (PR) channels and examine its performance for parallel and serial concatenated codes on a precoded Class IV partial response (PR4) channel. We present a SOVA that differs slightly from what appears in the literature and compare the performance of the two versions. Code rates of the form k0/k0+1 (k0 = 4, 8, and 64) are considered. Our simulations indicate that the loss at Pb = 10-5 suffered by the SOVA, relative to the APP algorithm, is at most 1.2 dB for parallel concatenations and at most 1.6 dB for serial concatenations.

UR - http://www.scopus.com/inward/record.url?scp=0033685496&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:0033685496

SP - 597

EP - 601

T2 - 2000 IEEE International Conference on Communications

Y2 - 18 June 2000 through 22 June 2000

ER -

Concatenated coding and iterative SOVA decoding with PR4 signaling

Abstract

Conference

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