16.Wireless WANs: Cellular Telephone and Satellite Networks

IS-95 uses the _______ satellite system for synchronization.

• Iridium
• GPS
• Teledesic
• none of the above

________ satellites can provide direct universal voice and data communications for handheld terminals.

• Teledesic
• GPS
• Iridium
• none of the above

________ is a second-generation cellular phone system based on CDMA and DSSS.

• IS-95
• D-AMPS
• GSM
• none of the above

GSM allows a reuse factor of _______.

• 7
• 5
• 3
• 1

In the third generation of cellular phones, ________ uses CDMA2000.

• IMT-MC
• IMT-TC
• IMT-SC
• IMT-DS

Iridium satellites are ________satellites.

• MEO
• LEO
• GEO
• none of the above

In an IS-95 system, the frequency-reuse factor is normally _____.

• 7
• 5
• 3
• 1

___________ is a second-generation cellular phone system used in Europe.

• IS-95
• GSM
• D-AMPS
• none of the above

A GEO is at the ________ orbit and revolves in phase with Earth.

• inclined
• polar
• equatorial
• none of the above

_______ is a first-generation cellular phone system.

• GSM
• AMPS
• D-AMPS
• none of the above