Question

Longley-Rice prediction model is also referred as _________

(a) Okumura model

(b) Hata model

(c) ITS irregular terrain model

(d) Bertoni model

I have been asked this question during an interview.

My question is taken from Outdoor Propagation Models topic in portion Mobile Radio Propagation: Large – Scale Path Loss of Wireless/Mobile

Answer 1

Correct answer is (c) ITS irregular terrain model

For explanation I would say: The Longley Rice prediction model is also referred to as ITS irregular terrain model. The model is based on electromagnetic theory and on statistical analyses of both terrain features and radio measurements. It predicts the median attenuation of a radio signal as a function of distance and the variability of the signal in time and in space.