Fast ray-tracing characterisation of indoor propagation channels at 60 GHz

For the design of high speed wireless networks, special attention has been paid to short range communication at 60 GHz due to the large bandwidth availability. In order to give proper channel characterization, a ray tracing method has been applied to a realistic environment. The large-scale received power as a function of receiver position is investigated in the presence of room furniture and a model for path-loss prediction based on the ''room partitioning'' is proposed. Moreover, due to the high absorption of materials at 60 Ghz, the characterization of the room coverage has been shown to be possible by considering only 1 or 2 reflections thus allowing fast ray-tracing prediction. Finally, wideband characterization is carried out in terms of RMS delay statistics in, various situations and the effects of sectored antennas are investigated.