CMC Quiz

A spectrum of 30 MHz is allocated to a cellular system which uses two 25 KHz simplex channels to provide full duplex voice channels. What is the number of channels available per cell for 4 cell reuse factor?

• 150 channels
  

• 600 channels

• 50 channels

• 85 channels

Which type of antenna is used for edge excited cells?

• Omnidirectional antenna

• Grid antenna

• Sectored directional antenna

• Dipole antenna

Capacity of a cellular system is directly proportional to __________

• Number of cells

• Number of times a cluster is replicated

• Number of Base stations

• Number of users

What happen to a call in fixed channel strategy, if all the channels in a cell are occupied?

• Queued

• Cross talk

• Blocked

• Delayed

In fixed channel assignment strategy, each cell is allocated a predetermined set of _______

• Voice channels

• Control channels

• 
  Frequency

• 
  base stations

In dynamic channel assignment strategy, base station requests channel from ____________

• Neighbouring cell

• MSC

• Neighbouring cluster

• Neighbouring base station

Paging system uses which mode of transmission?

• Full duplex

• Simplex

• Half Duplex

• Duplex

The time over which a call can be maintained within a cell without handoff is called _________

• Run time

• Peak time

• Dwell time

• Cell time

Umbrella cell approach is possible by using _________

• Antenna of same heights

• Antenna of different heights

• Different voice channels

• Different control channels

Which of the following problem occur due to adjacent channel interference?

• Blocked calls

• Cross talk

• Near-far effect

• Missed calls