Multidimensional mapping for bit-interleaved coded modulation with BPSK/QPSK signaling

In recent years, it has been recognized that bit-interleaved coded modulation with iterative decoding (BICM-ID) achieves excellent performance on virtually any channel, provided the signal mapping is carefully designed. In this paper, we introduce multidimensional mapping for BICM-ID, where a group...

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Bibliographic Details
Published inIEEE communications letters Vol. 9; no. 5; pp. 453 - 455
Main Authors Simoens, F., Wymeersch, H., Bruneel, H., Moeneclaey, M.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.05.2005
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Binary phase shift keying
Euclidean distance
Interleaved codes
Iterative decoding
Modulation coding
Multidimensional systems
Performance analysis
Quadrature phase shift keying
Signal design
Signal mapping
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Summary:In recent years, it has been recognized that bit-interleaved coded modulation with iterative decoding (BICM-ID) achieves excellent performance on virtually any channel, provided the signal mapping is carefully designed. In this paper, we introduce multidimensional mapping for BICM-ID, where a group of bits is mapped to a vector of symbols, rather than a single symbol. This allows for more flexibility and potential performance improvements. Our analysis shows that multidimensional mapping leads to an increase in Euclidean distance, thus boosting the performance compared to conventional mapping schemes. We derive a design criterion for optimal mappings and we provide such optimal mappings for BPSK and QPSK constellations.
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ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2005.1431169