# Statistical Models for Multipath Fading Channels MCQ’s

This set of Wireless & Mobile Communications Multiple Choice Questions & Answers (MCQs) focuses on “Statistical Models for Multipath Fading Channels”.

1. Who presented the first statistical model for multipath fading channel?
a) Ossana
b) Rayleigh
c) Newton

2. Clarke’s model assumes a horizontal polarized antenna.
a) True
b) False

3. Which of the following is not a statistical models for multipath fading channels?
a) Clarke’s model for flat fading
b) Saleh and Valenzuela indoor statistical model
c) Two ray Rayleigh fading model

4. A wave that is incident on mobile does not undergo Doppler shift.
a) True
b) False

5. The level crossing rate (LCR) is defined as expected rate at which _______ fading envelope crosses a specified level.
a) Rayleigh
b) Saleh
c) Vanezuela

6. Which of the following is an important statistics of a Rayleigh fading useful for designing error control codes and diversity schemes?
a) Mobile speed
b) Doppler frequency
c) Level crossing rate (LCR)
d) Power density

7. Level crossing rate is a function of _______
a) Power transmitted by base station
c) Mobile speed
d) Bit error rate

8. Saleh and Venezuela reported the results of ______ propagation measurements.
a) Indoor
b) Outdoor
c) Air
d) High frequency

9. Clarke’s model considers the multipath time delay.
a) True
b) False

10. What is the full form of SIRCIM?
a) Simulation of Indoor Radio Channel Impulse response Model
b) Statistical Indoor Radio Channel for Impulse Model
c) Statistical Impulse Radio Channel for Indoor Model
d) Simulation of Impulse Radio Channel for Indoor Model

11. Saleh and Venezuela show that indoor channel is _______ time varying.
a) Not
b) Very slow
c) Fast
d) Very fast