Experiments on direction of arrival for indoor propagation channel at 1.8 GHz

In this paper, the time and angular dispersion nature of indoor channels is evaluated by a spatio-temporal channel sounder. In the first experiment, a sports hall, as typical large indoor area, was selected. The results obtained by using two different measurement techniques and those obtained by a ray tracing software are compared. A good overall agreement between the measured and modeled spatio-temporal impulse responses is obtained. In the second experiment, the angular distribution of a typical small indoor area is analyzed.