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Wireless Communication Systems Practice Test: Small - Scale Fading & Multipath
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Small-scale fading is a temporary effect that describes rapid fluctuations in the amplitude and phase of a radio signal over a short period of time or distance.  Multipath is a propagation phenomenon that occurs when radio signals reach a receiving antenna by two or more paths. Multipath propagation results in a time-varying signal as the mobile moves position.  Multipath and fading can significantly impact the performance of wireless communication systems. Topics include: Multipath Propagation, Impulse Response Model, Multipath Measurements, Mobile Multipath Channels, Small-Scale Fading... Show more
Wireless Communication Systems Practice Test: Small - Scale Fading & Multipath
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25 Questions

1. Angular spread is a measure of how multipath concentrates about __________
2. Which of the following is not a principle shape factor?
3. The rapid fluctuations due to small scale fading affect the _________ design.
4. Frequency selective fading channels are also known as ________
5. Frequency domain channel sounding technique do not require hard wired synchronization between transmitter and receiver.
6. Spread spectrum sliding correlator has better ________ in comparison to RF pulse system.
7. For a Rayleigh fading signal, mean and median differ by _______
8. Faster sweep time can be accomplished by ________
9. The Doppler shift for mobile moving with constant velocity, v is given by _______
10. The maximal length of PN sequence, the sequence length for n number of shift register is ______
11. Envelope of the sum of two quadrature Gaussian noise signal obeys _________ distribution.
12. Which of the following is the first moment of the power delay profile?
13. In a frequency selective fading, mobile radio channel possess a constant gain and a linear phase over bandwidth smaller than bandwidth of transmitted signal.
14. Ricean distribution degenerates to ________ distribution when the dominant component fades away.
15. Apparent shift in frequency in multipath wave is caused due to relative motion between________
16. The received local ensemble average power of wideband and narrowband signals are ________
17. Saleh and Venezuela show that indoor channel is _______ time varying.
18. A wave that is incident on mobile does not undergo Doppler shift.
19. Small scale received power is ________ of average powers received in each multipath component.
20. Coherence bandwidth is a statistical measure of range of frequencies over which channel is considered _______
21. Doppler spread is a range of frequencies over which received Doppler spread is _______
22. _______ is the square root of the second central moment of the power delay profile.
23. Doppler shift is directly proportional to __________
24. Average power for a CW signal is _______ to average received power for a wideband signal in small scale region.
25. What is the full form of SIRCIM?

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