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Coding theorems for turbo code ensembles

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2 Author(s)
Hui Jin ; Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA ; R. J. McEliece

This paper is devoted to a Shannon-theoretic study of turbo codes. We prove that ensembles of parallel and serial turbo codes are "good" in the following sense. For a turbo code ensemble defined by a fixed set of component codes (subject only to mild necessary restrictions), there exists a positive number γ0 such that for any binary-input memoryless channel whose Bhattacharyya noise parameter is less than γ0, the average maximum-likelihood (ML) decoder block error probability approaches zero, at least as fast as n , where β is the "interleaver gain" exponent defined by Benedetto et al. in 1996

Published in:

IEEE Transactions on Information Theory  (Volume:48 ,  Issue: 6 )