A soft output hybrid algorithm for ML/MAP sequence estimation

Authors
Brushe, GD Mahony, RE Moore, JB
Citation
Gd. Brushe et al., A soft output hybrid algorithm for ML/MAP sequence estimation, IEEE INFO T, 44(7), 1998, pp. 3129-3134
Citations number
20
Categorie Soggetti
Information Tecnology & Communication Systems
Journal title
IEEE TRANSACTIONS ON INFORMATION THEORY
ISSN journal
00189448 → ACNP
Volume
44
Issue
7
Year of publication
1998
Pages
3129 - 3134
Database
ISI
SICI code
0018-9448(199811)44:7<3129:ASOHAF>2.0.ZU;2-#
Abstract
The classical Viterbi algorithm (ML sequence estimation) can be computed us ing a forward-backward structure, similar to that of the classical hidden M arkov model forward-backward algorithm (MAP state estimation). This similar ity is exploited to develop a hybrid algorithm which provides a mathematica l connection between ML sequence estimation and MAP state estimation.