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Optimization of symbol mappings for bit-interleaved coded modulation with iterative decoding

delete2003-12-01
delete201
PRE
AI
N
N. Görtz
J
J. Hagenauer
G
Gerhard Bauch
DOI：10.1109/LCOMM.2003.821325delete
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Abstract

Abstract

En 中文
We investigate bit-interleaved coded modulation with iterative decoding (BICM-ID) for bandwidth efficient transmission, where the bit error rate is reduced through iterations between a multilevel demapper and a simple channel decoder. In order to achieve a significant turbo-gain, the assignment strategy of the binary indices to signal points is crucial. We address the problem of finding the most suitable index assignments to arbitraryj high order signal constellations. A new method based on the binary switching algorithm is proposed that finds optimized mappings outperforming previously known ones.
Keywords:
bit-interleaved coded modulation (BICM)
iterative decoding (ID)
symbol labeling

Journal

IEEE Communications Letters cover
IEEE Communications Letters
IF:
4.4
Papers:
1.3W
Citations:
2.2W

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No organization information available