A code-matched interleaver design for turbo codes
Wen Feng
Jinhong Yuan
Vucetic, B.S.
Telstra Res. Labs., Telstra Corp., NSW;
This paper appears in: Communications, IEEE Transactions on
Publication Date: Jun 2002
Volume: 50,
Issue: 6
On page(s): 926-937
ISSN: 0090-6778
References Cited: 24
CODEN: IECMBT
INSPEC Accession Number: 7311466
Digital Object Identifier: 10.1109/TCOMM.2002.1010612
Current Version Published: 2002-08-07
Abstract
A code-matched interleaver design for turbo codes in which a
particular interleaver is constructed to match the code weight
distribution is proposed. The design method is based on the code
distance spectrum. The low weight paths in the code trellis which give
large contributions to the error probability in the signal-to-noise
ratio region of interest for practical communication systems are
eliminated so that they do not appear in the overall code trellis after
interleaving. The proposed interleaver improves the code error
performance at moderate to high signal-to-noise ratio and considerably
increases the asymptotic slope of the error probability curves
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