This set of Wireless & Mobile Communications Assessment Questions and Answers focuses on “Multipath Shape Factors for Small – Scale Fading”.

1. The term small scale fading describes the slow fluctuations of received power level due to changes in receiver position.

a) True

b) False

2. The rapid fluctuations due to small scale fading affect the _________ design.

a) Receiver

b) Transmitter

c) MSC

d) Base station

3. An approximately omnidirectional channel model accurately describes fading statistics if directional antennas are employed at the receiver.

a) True

b) False

4. Which of the following is not a principle shape factor?

a) Angular spread

b) Angular constriction

c) Azimuthal direction of maximum fading

d) Angle of arrival

5. Angular spread is a measure of how multipath concentrates about __________

a) Angle of arrival

b) Transmitted power

c) Single azimuthal direction of arrival

d) Received power

.

6. Angular constriction is a measure of how multipath concentrates about ______ azimuthal direction.

a) Single

b) Two

c) Three

d) Four

7. Shape factor, azimuthal direction of maximum fading is a directional parameter.

a) True

b) False

8. _______ of a stationary process is actually the variance of the rate of change.

a) Mean

b) Mean square

c) Mean squared derivative

d) Mean squared integral

9. Complex received voltage is a summation of __________ that have impinged upon receiver antenna.

a) Multipath waves

b) Waves

c) Power density

d) Single path waves

10. Which of the following is equal to received power?

a) Square of complex voltage

b) Complex voltage

c) Magnitude of complex voltage

d) Magnitude squared of complex voltage

11. Which of the following is equal to received envelope?

a) Square of complex voltage

b) Complex voltage

c) Magnitude of complex voltage

d) Magnitude squared of complex voltage

12. Which of the following describes the average fading rate within a local area?

a) Angular spread

b) Angular constriction

c) Azimuthal direction of maximum fading

d) Angle of arrival

13. Angular constriction affects the average fading rate within local area.

a) True

b) False