Trellis-coded modulation with bit interleaving and iterative decoding

  • Authors:
  • Xiaodong Li;J. A. Ritcey

  • Affiliations:
  • Dept. of Electr. Eng., Washington Univ., Seattle, WA;-

  • Venue:
  • IEEE Journal on Selected Areas in Communications
  • Year:
  • 1999

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Abstract

This paper considers bit-interleaved coded modulation (BICM) for bandwidth-efficient transmission using software radios. A simple iterative decoding (ID) method with hard-decision feedback is suggested to achieve better performance. The paper shows that convolutional codes with good Hamming-distance property can provide both high diversity order and large free Euclidean distance for BICM-ID. The method offers a common framework for coded modulation over channels with a variety of fading statistics. In addition, BICM-ID allows an efficient combination of punctured convolutional codes and multiphase/level modulation, and therefore provides a simple mechanism for variable-rate transmission