Question

Propagation model that characterize rapid fluctuation is called _________

(a) Hata model

(b) Fading model

(c) Large scale propagation model

(d) Okumura model

The question was asked during a job interview.

Origin of the question is Free Space Propagation Model topic in section Mobile Radio Propagation: Large – Scale Path Loss of Wireless/Mobile

Answer 1

Right choice is (b) Fading model

For explanation I would say: Fading models characterize the rapid fluctuations of the received signal strength over very short travel distance (a few wavelengths) or shot time durations (on the order of seconds).