Question

For a Rayleigh fading signal, mean and median differ by _______

(a) 2 dB

(b) 10 dB

(c) 0.55 dB

(d) 100 dB

I have been asked this question in a national level competition.

This question is from Rayleigh and Ricean Distribution in portion Mobile Radio Propagation: Small – Scale Fading and Multipath of Wireless/Mobile

Answer 1

The correct answer is (c) 0.55 dB

Best explanation: The mean and median differ by only 0.55 dB in a Rayleigh fading signal. The differences between the rms values and the other two values are higher.