A spatial channel model and a beamformer for smart antennas in broadcasting studios

This paper proposes the use of smart (adaptive) antennas for the HIPERLAN/2 (high performance radio local area network/2) standard in order to increase the data rate and user capacity, targeting wired LAN replacement in modern TV broadcasting studio environments. A 2D ray-tracing indoor channel model for predicting the propagation characteristics inside an arbitrary indoor architecture and wall properties is presented. An adaptive beamformer is then developed for the case when the number of users is equal to the number of array elements as well as the underdetermined and overdetermined cases taking into account the multipath behaviour of the transmitted signals in an arbitrary indoor environment.