Title :
Self-concatenated codes with self-iterative decoding for power and bandwidth efficiency
Author :
Benedetto, S. ; Divsalar, D. ; Montorsi, G. ; Pollara, F.
Author_Institution :
Politecnico di Torino, Italy
Abstract :
A self-concatenated code with interleavers is a concatenated coded scheme based on only one recursive convolutional code. An upper bound on bit error probability, averaged over all possible interleavers, using maximum-likelihood decoding is obtained. Design rules for the single convolutional code, that maximize the interleavers gain and the effective free distance are presented. Design rules are extended to nonbinary modulation for the design of self-concatenated trellis coded modulation. A low-complexity self-iterative decoding algorithm for the self-concatenated code for binary and nonbinary modulation is proposed
Keywords :
concatenated codes; convolutional codes; error statistics; interleaved codes; iterative decoding; maximum likelihood decoding; trellis coded modulation; bandwidth efficiency; binary modulation; bit error probability; effective free distance; gain maximisation; interleavers; low-complexity decoding algorithm; maximum-likelihood decoding; nonbinary modulation; power efficiency; recursive convolutional code; self-concatenated codes; self-concatenated trellis coded modulation; self-iterative decoding; upper bound; Bandwidth; Concatenated codes; Convolutional codes; Error probability; Laboratories; Maximum likelihood decoding; Modulation coding; Propulsion; Turbo codes; Upper bound;
Conference_Titel :
Information Theory, 1998. Proceedings. 1998 IEEE International Symposium on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-5000-6
DOI :
10.1109/ISIT.1998.708774
