Multipath propagation characterization of ultra-wide band indoor radio channels

This paper presents the results of ultra-wide band (UWB) indoor channel measurements performed in a hall, a meeting room, and a corridor with both LOS and NLOS scenarios. The channel multipath propagation characteristics are investigated by examining the power delay profiles, path loss, power distribution, and rms delay spread. It is found that in UWB channels, the appearance of multipath components are in the forms of diffuse, single dominant and clustered paths, their appearance is highly dependent on the measurement environments. UWB radio is robust to multipath fading due to the small fading margin and the high multipath diversity gain it has. Moreover, the UWB measurement results are compared with the results obtained in traditional wideband 60 GHz indoor channels.