Wireless And Mobile Communication MCQs: Q&A

Wireless And Mobile Communication MCQs. This set has 15 Wireless And Mobile Communication MCQs related to Electronics Engineering.

 

Wireless And Mobile Communication MCQs

 

 

In Mobile Assisted Handoff (MAHO), the handoff takes place when ??

a. The power received by the mobile station from another base station is more than the serving base station
b. The channel allocated is not available
c. The mobile station has no signal
d. All of the above

 

Diffraction, at high frequencies, depends upon ??

1. Geometry of the object
2. Polarization of the incident wave
3. Amplitude of the incident wave
4. Frequency of the incident wave

a. 1 and 2 are correct
b. 1, 2, and 3 are correct
c. 2 and 3 are correct
d. All are correct

 

Mobile Assisted Handoff (MAHO) provides ??

a. Faster handoffs
b. Suitability for frequent handoffs
c. MSC need not monitor the signal strength
d. All of the above

 

Antenna down tilting refers to ??

a. Focusing radio energy towards ground
b. Decreasing the strength of antenna
c. Decreasing the S/N ratio at the antenna input
d. All of the above

 

MCQs Communication of Mobiles

 

Trunking in a cellular network refers to ??

a. Termination of a call
b. Spectrum unavailability
c. Accommodating a large number of users in a limited spectrum
d. All of the above

 

Distributed antenna systems are used at ??

a. Transmitters of mobile systems
b. Transmitters of base stations
c. Inputs and outputs of repeaters
d. Receivers of mobile stations

 

When all of the radio channels are in use in a trunking system ??

a. The user is blocked
b. The access to the system is denied
c. The queue may be provided
d. All of the above

 

The techniques used to improve the capacity of cellular systems are ??

a. Splitting
b. Sectoring
c. Coverage zone approach
d. All of the above

 

Wireless And Mobile Communication MCQs

 

Umbrella cell approach ??

a. Uses large and small cells
b. Uses different antenna heights
c. Is used for high speed users with large coverage area and low speed users with small coverage area
d. All of the above

 

Traffic intensity is expressed in ??

a. Erlangs /MHz /km2
b. Erlangs
c. λ/ sec
d. dB/sec

 

Interference in cellular systems is caused by ??

a. Two base stations operating in the same frequency band
b. Two calls in progress in nearby mobile stations
c. Leakage of energy signals by non-cellular systems into cellular frequency band
d. All of the above

 

Grade of service refers to ??

a. Accommodating a large number of users in a limited spectrum
b. The ability of a user to access the trunked system during busy hour
c. Two calls in progress in nearby mobile stations
d. High-speed users with large coverage area

 

Wireless And Mobile Communication MCQs

 

Interference in frequency bands may lead to ??

a. Cross talk
b. Missed calls
c. Blocked calls
d. All of the above

 

An increase in the Co-channel reuse ratio indicates ??

a. Better transmission quality
b. Larger capacity
c. Low co-channel interference
d. Both a and c
e. Both a and b

 

Co-channel reuse ratio depends upon ??

a. Radius of the cell
b. Distance between the centers of the co-channel cells
c. Frequency allocation of nearest cells
d. Both a and b
e. Both b and c

 

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