Title :
Improved adaptive Viterbi detectors for fast-varying mobile-radio channels
Author_Institution :
R. Inst. of Technol., Stockholm, Sweden
Abstract :
The use of adaptive Viterbi detectors on fast-varying mobile-radio channels is studied. The main objective is to propose two new methods that may significantly improve the performance of the detector. The first method is to use prediction to combat the inherent delay of the channel estimates. The second method is to use so-called leaky algorithms in the channel estimator. This will make the detector significantly more robust against severe error bursts, which are due to error propagation in the channel estimator
Keywords :
adaptive filters; decoding; digital radio systems; mobile radio systems; radio receivers; telecommunication channels; time division multiple access; adaptive Viterbi detectors; channel estimator; error propagation; fast-varying mobile-radio channels; leaky algorithms; prediction;
Conference_Titel :
Mobile Radio and Personal Communications, 1991., Sixth International Conference on
Conference_Location :
Coventry
Print_ISBN :
0-85296-530-3