Cellular Mobile Computing

The actual radio coverage of a cell is called

• Foot-print

• Sector

• Cluster

• Co-channel cell

Cells that use the same set of frequencies are referred to as

• Co-channel cell

• Adjacent channel cell

• Sectors

• Cluster

Identify the technique that bring better coverage, utility of available frequency spectrum and reduced transmitter power.

• Frequency reuse

• Trunking

• Micro-cell zoning

• Diversity

C/I ratio of GSM standard is

• >= 9 dB

• >= 12 dB

• >= 24 dB

• None of the above

Identify the Min load and Max load for 1 channel

• 0 Erlang and 1 Erlang

• 1 Erlang and 10 Erlang

• 1 Erlang and 100 Erlang

• None of the above

Identify the problem. Both C/I and C/N are < 18 dB and C/I < C/N in the given area

• Both co-channel interference and

  radio coverage problem

• Radio coverage problem

• Interference problem

• No problem

Q and CCI relation:

• Smaller the Q, greater the CCI

• Larger the Q greater the CCI

• Directly proportional

• None of the above

Which is the first launched 1G mobile system in USA?

• AMPS

• GSM

• IS-95

• CDMA

Identify the multiple access scheme that uses spot beam antennas.

• SDMA

• CDMA

• TDMA

• OFDMA

Identify the modulation method used in GSM.

• GMSK

• QPSK

• 16-QAM

• FM