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Mismatched shaping schemes for bit-interleaved coded modulation

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3 Author(s)
Li Peng ; Univ. of Cambridge, Cambridge, UK ; Guillen i Fabregas, A. ; Martinez, A.

We consider bit-interleaved coded modulation (BICM) schemes where, instead of the true bit or symbol probabilities and the constellation used at the transmitter, the decoder uses arbitrary probabilities or reference constellations. We study the corresponding low- and high- signal-to-noise-ratio regimes and show that even in the presence of this extra sources of mismatch, BICM has a negligible penalty with respect to coded modulation.

Published in:

Information Theory Proceedings (ISIT), 2012 IEEE International Symposium on

Date of Conference:

1-6 July 2012