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Efficient computation of EXIT functions for nonbinary iterative decoding
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DOI：10.1109/TCOMM.2006.885050.png)
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Abstract
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The calculation of nonbinary extrinsic information transfer charts for the iterative decoding of concatenated index-based codes is addressed. We show that the extrinsic information at the output of a constituent a posteriori probability decoder can be calculated with very low complexity, where expensive histogram measurements are not required anymore. An example for turbo trellis-coded modulation demonstrates the capabilities of the proposed approach.
Keywords:
extrinsic information transfer (EXIT) charts
nonbinary iterative decoding
turbo trellis-coded modulation (TTCM)
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8.3
Papers:
1.2W
Citations:
3.6W
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