DocumentCode :
942751
Title :
New trellis codes based on lattices and cosets
Author :
Calderbank, A.R. ; Sloane, N. J A
Volume :
33
Issue :
2
fYear :
1987
fDate :
3/1/1987 12:00:00 AM
Firstpage :
177
Lastpage :
195
Abstract :
A new technique is proposed for constructing trellis codes. which provides an alternative to Ungerboeck\´s method of "set partitioning." The new codes use a signal constellation consisting of points from an 
-dimensional lattice 
, with an equal number of points from each coset of a sublattice 
. One part of the input stream drives a generalized convolutional code whose outputs are cosets of , while the other part selects points from these cosets. Several of the new codes are better than those previously known.
-dimensional lattice , with an equal number of points from each coset of a sublattice . One part of the input stream drives a generalized convolutional code whose outputs are cosets of , while the other part selects points from these cosets. Several of the new codes are better than those previously known.Keywords :
Trellis coding; Constellation diagram; Convolutional codes; Estimation theory; Lattices; Signal design; Signal mapping;
fLanguage :
English
Journal_Title :
Information Theory, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9448
Type :
jour
DOI :
10.1109/TIT.1987.1057291
Filename :
1057291
Link To Document :
