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Vector quantisation with MAP estimator using reliability information from turbo-codes

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1 Author(s)
Keang-Po Ho ; Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong

Minimum mean-squared distortion can be achieved by a maximum a posteriori probability (MAP) estimator utilising the reliability information available from the turbo-code channel decoder. Using the optimum MAP estimator in vector quantisation, numerical results show that MAP detection provides a significant improvement over the conventional mapping-based hard-decision source decoder

Published in:

Electronics Letters  (Volume:34 ,  Issue: 15 )