Question

Log normal shadowing implies that measured signal levels at specific T-R separation have ______ distribution when signal levels have values in dB units.

(a) Rayleigh

(b) Gamma

(c) Gaussian

(d) Nakagami

I had been asked this question in an online quiz.

This question is from Practical Link Budget Design Using Path Loss Models topic in portion Mobile Radio Propagation: Large – Scale Path Loss of Wireless/Mobile

Answer 1

Correct answer is (c) Gaussian

To explain: Log normal shadowing implies that measured signal levels at a specific T-R separation have Gaussian (Normal) distribution. It is about the distance dependent mean of 4.68 where the signal levels have values in dB units.