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Interleaver design for turbo codes based on the performance of iterative decoding

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3 Author(s)
Hokfelt, J. ; Dept. of Appl. Electron., Lund Univ., Sweden ; Edfors, O. ; Maseng, T.

The performance of a turbo code is dependent on two properties of the code: its distance spectrum and its suitability to be iteratively decoded. Both these properties are dependent on the specific interleaver used in the turbo-coding scheme. This paper describes a strategy for interleaver design that includes a criterion for the performance of iterative decoding. This criterion is based upon correlation properties of the extrinsic information, which is used as a priori inputs to the constituent decoders. Simulations comparing interleaver choices indicate an improved turbo code performance for interleavers designed with algorithms including a correlation criterion

Published in:

Communications, 1999. ICC '99. 1999 IEEE International Conference on  (Volume:1 )

Date of Conference:

1999