Jin He Masoud Salehi A Lattice Precoding for Flat-Fading MIMO Channels Based on Eigenvalue Decomposition. 3185-3189 2008 GLOBECOM http://dx.doi.org/10.1109/GLOCOM.2008.ECP.611 conf/globecom/2008 db/conf/globecom/globecom2008.html#HeS08