Since the introduction of sending and receiving emails or watching TV with
mobiles en route, modern wireless broadcasting services require high data
rates. However, increasing the information flow-rate requires that the operating
frequency is also increased. This gives rise to problems with providing
good and constant signal strength to ensure that end user does not notice
any interruptions. Previous investigations have detected that a significant signal
propagation path, the outdoor-indoor path, can be enormously disturbed.
From a technical point of view, the wave propagation through...