A comparison of indoor radio propagation characteristics at 910 MHz and 1.75 GHz

The results of temporally and spatially distributed wideband (impulse response) propagation measurements made on fixed indoor radio channels at center frequencies of 910 MHz and 1.7 GHz are presented. Impulse response parameters, as well as envelope fading statistics are presented and compared for the two bands. It is found that for a specific location in either of the two buildings, the temporal dynamics of the channel are slightly less random at 910 MHz than at 1.75 GHz. It is believed, with due consideration of the quasistatic nature of the fading, that this would result in marginally better performance on a given transmit/receive link in the 900 MHz band. However, the results show that the relative coverage capabilities and static performance characteristics of systems operating in the two bands differ for different buildings