SEQUENTIAL-DECODING WITH TRELLIS SHAPING

Authors
COUTURIER S COSTELLO DJ WANG FQ
Citation
S. Couturier et al., SEQUENTIAL-DECODING WITH TRELLIS SHAPING, IEEE transactions on information theory, 41(6), 1995, pp. 2037-2040
Citations number
12
Categorie Soggetti
Information Science & Library Science","Engineering, Eletrical & Electronic
Journal title
IEEE transactions on information theory → ACNP
ISSN journal
00189448
Volume
41
Issue
6
Year of publication
1995
Part
2
Pages
2037 - 2040
Database
ISI
SICI code
0018-9448(1995)41:6<2037:SWTS>2.0.ZU;2-8
Abstract
Sequential decoding of the channel code in a trellis-coded modulation system with trellis shaping can be used to reduce the system complexit y and to achieve high coding gain with large constraint-length codes. It is shown that almost all the shaping gain that can be achieved when Viterbi decoding is used for the channel code can also be achieved wh en sequential decoding is used for the channel code. It is also shown that the real shaping gain is a function of both the SNR and the spect ral efficiency.