Wideband propagation modelling for indoor environments and for radio transmission into buildings

With the introduction of wireless broadband services in indoor environments there is a growing interest in propagation models for the mobile radio channel inside buildings. Because of the increasing transmission rates propagation models should be able to calculate the field strength coverage as well as the wideband properties for these indoor scenarios. This paper presents a new ray optical approach, which enables the prediction of field strength, delay spread and impulse response within a very short computation time. Additionally, simulation results gained with the new model are compared to measurements of the different wideband channel parameters