Title :
Trellis-coded modulation with bit interleaving and iterative decoding
Author :
Li, Xiaodong ; Ritcey, James A.
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
fDate :
4/1/1999 12:00:00 AM
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
Keywords :
AWGN channels; Rayleigh channels; convolutional codes; diversity reception; feedback; interleaved codes; iterative decoding; phase modulation; radio equipment; statistical analysis; trellis coded modulation; AWGN channels; Hamming-distance property; Rayleigh fading channels; bandwidth-efficient transmission; bit-interleaved coded modulation; convolutional codes; fading statistics; hard-decision feedback; high diversity order; iterative decoding; large free Euclidean distance; multiphase/level modulation; performance; punctured convolutional codes; software radios; trellis-coded modulation; variable-rate transmission; Codecs; Convolutional codes; Fading; Feedback; Interleaved codes; Iterative decoding; Modulation coding; Rayleigh channels; Software radio; Statistics;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
