The Large Office Environment - Measurement and Modeling of the Wideband Radio Channel

In a future 4G or WLAN wideband application we can imagine multiple users in a large office environment consisting of a single room with partitions. Up to now, indoor radio channel measurement and modelling has mainly concentrated on scenarios with several office rooms and corridors. We present here measurements at 5.8 GHz for 100 MHz bandwidth and a novel modelling approach for the wideband radio channel in a large office room environment. An acoustic like reverberation theory is proposed that allows to specify a tapped delay line model just from the room dimensions and an average absorption coefficient of the delimiting walls. The proposed model agrees amazingly well with the measurements, showing that the diffuse part is uniformly spread over the room with a constant energy level and a constant temporal decay slope. Furthermore, we analyze fading statistics and capacities calculated from the measurements. The proposed model can likely also be applied to indoor hot spot scenarios