Describe wireless wide area networks (WWANs) and how they are used

Wireless Communications

Wireless Wide Area Networks

2

Objectives

• Describe wireless wide area networks (WWANs) and

how they are used

• Describe the applications that can be used on a digital

cellular telephone

• Explain how cellular telephony functions

• List features of the various generations of cellular

telephony

• Discuss how satellite transmissions work

3

Cellular Telephone Applications

• Digital cellular telephones can be used to:

– Browse the Internet

– Send and receive short messages and e-mails

– Participate in videoconferencing

– Receive various sorts of information

– Run a variety of business applications

– Connect to corporate networks

– Watch television or on-demand movies

– Take and transmit pictures and short movies

– Locate family members and employees using GPS

4

Cellular Telephone Applications

(continued)

• Short Message Services (SMS)

– One of the most widely used applications

– Allows for the delivery of short, text-based messages

between wireless devices

• Messages are limited to about 160 characters

– Applications

• Person-to-person

• Agent-to-person

• Information broadcast services

• Software configuration

• Advertising