Wideband propagation measurements for future millimetre 60 GHz wireless LANs

Estimations of the instantaneous coherence bandwidth from wideband channel sounding measurements made in the 62.4 GHz band in two indoor environments in a university building are presented. The 90th percentile of the estimated coherence bandwidth B_0.9 at 0.9 correlation level in a long narrow corridor environment is below 38 MHz. Large variations in B_0.9 were observed. In an empty room environment, B_0.9 was 72 MHz for 90% of the time. The instantaneous coherence bandwidth is highly variable with the location of the receiver with respect to the base station