TETRA Outdoor Large- Scale Received Signal Prediction Model in Riyadh Urban Area

TETRA outdoor large-scale received signal prediction model is presented here. The model follows log-distance model. It is derived based on received signal strength survey measurements of a TETRA system, operating in the 300-400 MHz band, in Riyadh city. The model is aimed to assist practicing engineers in the estimation of received power, or electric field strength as well as path-loss at any given distance from the base station or vice versa. The model exponent (n) for the selected routes is found to be 3 ± 0.7. However, the overall value of n for urban area in the Riyadh city is found to be 3.22. It is noted that the values of n obtained here are low, compared to values obtained in several European cities, as the streets are wider and the buildings’ heights are lower in most parts of the routes in Riyadh.