Sebastian Caban Christian Mehlführer Lukas W. Mayer Markus Rupp 2x2 MIMO at Variable Antenna Distances. 1311-1315 2008 VTC Spring http://dx.doi.org/10.1109/VETECS.2008.276 conf/vtc/2008s db/conf/vtc/vtc2008s.html#CabanMMR08