VECTOR QUANTIZATION WITH MAP ESTIMATOR USING RELIABILITY INFORMATION FROM TURBO-CODES

Authors
HO KP
Citation
Kp. Ho, VECTOR QUANTIZATION WITH MAP ESTIMATOR USING RELIABILITY INFORMATION FROM TURBO-CODES, Electronics Letters, 34(15), 1998, pp. 1473-1474
Citations number
5
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
34
Issue
15
Year of publication
1998
Pages
1473 - 1474
Database
ISI
SICI code
0013-5194(1998)34:15<1473:VQWMEU>2.0.ZU;2-I
Abstract
Minimum mean-squared distortion can be achieved by a maximum a posteri ori probability (MAP) estimator utilising the reliability information available from the turbo-code channel decoder. Using the optimum MAP e stimator in vector quantisation, numerical results show that MAP detec tion provides a significant improvement over the conventional mapping- based hard-decision source decoder.