Enhanced MIMO for IMT-advanced wireless systems

Ultra wideband (UWB) technology combined with multiple transmit and receive antennas (MIMO) is a viable way to achieve data rates of more than several Gb/s for wireless communications. UWB is typically applied to short range and therefore mainly indoor communications in environments characterized by dense multipath propagation. For this type of environments, MIMO systems allow for a significant increase of spectral efficiency by exploiting the inherent array gain and spatial multiplexing gain of the systems. In this talk, a brief overview is provided for MIMO- UWB wireless technology covering channel capacity, spatial multiplexing, space-time coding, and beamforming - both from a theoretical point of view, but also based on measurements. At the end of the talk, a forecast about the perspectives of MIMO-UWB will be given.