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Cellular Communications
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Table of Contents:
Definition and Overview
1. Mobile Communications Principles
2. Mobile Telephone System Using the Cellular Concept
3. Cellular System Architecture
4. North American Analog Cellular Systems
5. Cellular System Components
6. Digital Systems
Self-Test
Glossary
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Self-Test
1. Interference effects in cellular systems are a result of _________________.
a. the distance between areas
b. the power of the transmitters
c. the ratio of the distance between areas to the transmitter power of the areas
d. the height of the antennas
2. Larger cells are more useful in ________.
a. densely populated urban areas
b. rural areas
c. lightly populated urban areas
d. mountainous areas
3. The most widely used standard for cellular communications is ___________.
a. the advanced mobile phone service (AMPS)
b. the mobile subscriber unit (MSU)
c. the mobile telephone switching office
d. code division multiple access (CDMA)
4. How many conversations per channel can TDMA digital cellular carry at once?
a. 1
b. 2
c. 3
d. 10
5. Which of the following is not a limitation of AMPS?
a. low calling capacity
b. poor privacy protection
c. limited spectrum
d. wide coverage area
6. Digital cellular technologies offer increased capacity and security.
a. true
b. false
7. TDMA, a digital air interface standard, has twice the capacity of analog.
a. true
b. false
8. Cells are always hexagonal in shape.
a. true
b. false
9. Frequency reuse was maximized by increasing the size of cells.
a. true
b. false
10. Fixed wireless access is primarily a rural application.
a. true
b. false
Glossary >>

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