Title :
A code-matched interleaver design for turbo codes
Author :
Feng, Wen ; Yuan, Jinhong ; Vucetic, Branka S.
Author_Institution :
Telstra Res. Labs., Telstra Corp., NSW, Australia
fDate :
6/1/2002 12:00:00 AM
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
Keywords :
concatenated codes; convolutional codes; error statistics; interleaved codes; trellis codes; turbo codes; BER performance; SNR; bit error probability; code distance spectrum; code error performance; code trellis; code weight distribution; code-matched interleaver design; coding gain; communication systems; concatenated codes; error probability curves; low weight paths; signal-to-noise ratio; turbo codes; Associate members; Australia; Convolutional codes; Design methodology; Error correction; Error probability; Interleaved codes; Iterative decoding; Signal to noise ratio; Turbo codes;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2002.1010612
