Multidimensional parameters and MIMO (2/2) Angle spread and delay spread are two possibile measures of multipath richness. SNR remains however the most important parameter for the performance pf small-size MIMO schemes(i.e.2x2 or 4x4 etc) Recent studies have shown that for unnormalized channel,the channel capacity usually rises when moving from NLOS into LOS since the loss in multipath richness is more than compensated for by an increase in SNR. Dual-polarized MIMO schemes are very attractive as a doubling in the MIMO order is achieved with a less-than-proportional increase in the antenna size. In Dual polarized MIMO schemes the XPD(Cross-Polarization Discrimination) is very important.If the XPD is high (low correlation btw polarization states) then multiplexing is possible,otherwise polarization diversity is preferable Multidimensional parameters and MIMO (2/2) Angle spread and delay spread are two possibile measures of multipath richness. SNR remains however the most important parameter for the performance pf small-size MIMO schemes (i.e. 2x2 or 4x4 etc) Recent studies have shown that for unnormalized channel, the channel capacity usually rises when moving from NLOS into LOS since the loss in multipath richness is more than compensated for by an increase in SNR. Dual-polarized MIMO schemes are very attractive as a doubling in the MIMO order is achieved with a less-than-proportional increase in the antenna size. In Dual polarized MIMO schemes the XPD (Cross-Polarization Discrimination) is very important. If the XPD is high (low correlation btw polarization states) then multiplexing is possible, otherwise polarization diversity is preferable