Temporal variations characterization for fixed wireless at 29.5 GHz

The reliability of the communication channel is one of the most important issues for successful deployment of LMCS/LMDS systems. This paper focuses on the temporal variations of the signal because of passing vehicles and foliage movement imparted from wind. CW measurements at 29.5 GHz with the transmitter and receiver at fixed locations were carried out for a maximum distance of 1.5 km between transmitting and receiving antennas. The presented results include power profile at various locations, cumulative distribution function of received signal strength, autocorrelation function, power spectral density, level crossing rates, duration of fades and interfade statistics. The Kolmogrov Smirnov test is also performed to find the closeness of the acquired data with standard fading channel models.