Patent ID: 8194763
Filing Date: 2012-06-05
Classification: H04L

Abstract:
1. A method for decoding 2×2 space-time codes of a vector Y, in particular of the Golden Code type, the decoding method comprising a decoder for performing the following steps: a filtering of the minimum mean square error-generalized decision feedback equalizer (MMSE-GDFE) type is carried out by the decoder in order to obtain a vector Y a constellation recentring is carried out by the decoder so that the vector to be determined becomes Z, such that Z=Y a step of permutation of the elements of the matrices Z, R and F is carried out by the decoder in order to obtain {tilde over (Z)}, {tilde over (R)} and {tilde over (Γ)} such that {tilde over (R)} a step of lattice basis reduction is carried out by the decoder such that {tilde over (Z)}=2K the zero forcing-decision feedback equalizer (ZF-DFE) decoding algorithm is applied by the decoder, in which among the four elements of two layers are identified, each layer comprising the two elements of the diagonal or anti-diagonal of {tilde over (Z)}; the DFE algorithm is applied layer by layer and the ZF algorithm within each of the layers.