Question

Which of the following distribution is used for describing statistical time varying nature of received envelope of multipath component?

(a) Log normal distribution

(b) Levy distribution

(c) Rayleigh distribution

(d) Gaussian distribution

The question was posed to me in homework.

Question is from Rayleigh and Ricean Distribution in division Mobile Radio Propagation: Small – Scale Fading and Multipath of Wireless/Mobile

Answer 1

Right answer is (c) Rayleigh distribution

For explanation I would say: Rayleigh distribution is the most common distribution for statistical modelling. It is used to describe the statistical time varying nature of the received envelope of a flat fading signal. It also describes the envelope of an individual multipath component.