Ultra-Wideband Technologies

Wireless & Mobile Communications

This set of Wireless & Mobile Communications Multiple Choice Questions & Answers (MCQs) focuses on “Paging System”.

1. _________ also known as impulse or zero-carrier radio technology.
a) Ultra wideband technology
b) Femtocell technology
c) Multicasting
d) Multiplexing

2. UWB operates across narrow bandwidth.
a) True
b) False

3. The basic element in DSC–UWB technology is the monocycle wavelet.
a) True
b) False

4. In TM–UWB, the system uses a modulation technique called _______
a) Pulse width modulation
b) Pulse code modulation
c) Pulse position modulation
d) Pulse amplitude modulation

5. DSC-UWB uses _________
a) Pulse width modulation
b) Pulse code modulation
c) Pulse position modulation
d) Direct sequence modulation

6. The coherent interaction of signals in UWB arriving by many paths causes ____________
a) Ricean fading
b) Nakagami fading
c) Rayleigh fading
d) Multicast fading

7. UWB technology supports low bit rate and low speed.
a) True
b) False

8. Which of the following is not true for UWB?
a) Large spectrum
b) Lower price
c) Pulse data
d) Large interference

9. UWB systems are very complex, since they use radio frequency/intermediate frequency conversion stages.
a) True
b) False

10. Which of the following is a drawback of UWB technology?
a) Not appropriate for WAN
b) Power limited
c) Small spectrum
d) Limited jitter requirements

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