Line-of-sight measurement of indoor wireless LAN channels at 18 GHz using directive antennae

摘要

This paper introduces some of the measurement results of the indoor radio channels at 18 GHz using a pair of horn antennae. The characteristics of the channel with same antennae separations are investigated, and the main results are: (1) The number of multipath components shows a very good fitness to the normal distribution; (2) The average power gain shows a very good fitness to the log-normal distribution; (3) The RMS delay spread is normally distributed; (4) The relative amplitude of each bin has a very good fitness to the log-normal distribution; (5) The path arrival time sequence obeys the modified Poisson distribution rather than the standard Poisson distribution; (6) Using directive antennae for wireless LAN can decrease the RMS delay spread, hence the data transmission rate and the throughput of the future system can be improved.