**11. Sobre a Implementação de Retículos:
Um Algoritmo de Decodificação/demapeamento Combinados
**

Lattices are efficient Coded Modulation schemes. The practical implementation
of bounded lattices

deals with a mapping of binary strings into lattice points, decoding noisy
vectors into a lattice point

and demapping it into binary sequences. We introduce a combined demapping-decoding
algorithm for

lattices obtained from any generalized code formula. The process is simplified
by decoding a

noisy vector directly into a binary stream. The aim is to exploit attractive
configurations from

the practical point of view. The algorithm performance is evaluated by simulation:

It is maximum likelihood for lattices from construction A, and it is bounded
distance in any other case.