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

摘要

This paper introduces some of the measurement results of thenindoor radio channels at 18 GHz using a pair of horn antennae. Thencharacteristics of the channel with same antennae separations areninvestigated, and the main results are: (1) The number of multipathncomponents shows a very good fitness to the normal distribution; (2) Thenaverage power gain shows a very good fitness to the log-normalndistribution; (3) The RMS delay spread is normally distributed; (4) Thenrelative amplitude of each bin has a very good fitness to the log-normalndistribution; (5) The path arrival time sequence obeys the modifiednPoisson distribution rather than the standard Poisson distribution; (6)nUsing directive antennae for wireless LAN can decrease the RMS delaynspread, hence the data transmission rate and the throughput of thenfuture system can be improved