Title :
Channel symbol expansion diversity
Author :
Hansson, U. ; Aulin, T.
Author_Institution :
Comput. Eng., Chalmers Univ. of Technol., Goteborg, Sweden
fDate :
8/31/1995 12:00:00 AM
Abstract :
Zehavi (1992) generalised the TCM (trellis coded modulation) concept by interleaving the coded bits from the convolutional encoder (CE) prior to channel symbol mapping. The authors present a novel approach whereby the performance over the Rayleigh fading channel is significantly improved (maintained relative to TCM for the AWGN channel). More coded bits are produced prior to interleaving and channel symbol mapping than is the case for the Zehavi generalisation. By expanding the set of channel symbols, spectral spreading is avoided
Keywords :
Rayleigh channels; decoding; diversity reception; fading; trellis coded modulation; AWGN channel; Rayleigh fading channel; TCM; channel symbol expansion diversity; channel symbol mapping; convolutional encoder; interleaving; trellis coded modulation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19951057
