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3D ray-tracing has meanwhile advanced to a performance that it can provide channel parameters such as delay spread, Doppler spread, angular spread, distribution functions of long- and short-term fading with high accuracy for fixed to mobile and mobile to mobile communications. These parameters are absolutely required during the specification phase in order to define the air interface and a variety...
Many studies investigate wireless communication systems with multiple antennas on both sides of the link (MIMO systems) for future high-speed mobile communications. With these systems, the spatial properties of the propagation channel can be exploited. This paper deals with the investigation of MIMO systems on system level for the downlink case. In this scenario multiuser interference affects the...
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