The most popular wireless Internet access technologies today are
1. Wireless LAN
2. Wide-area wireless access network
Wireless LAN:
• Wireless LAN use radio transmissions to send data.
• In Wireless LAN, users can transmit data within a radius of few tens of meters.
• The base station of the Wireless LAN is connected to the wired Internet and thus connects the users to the wired Internet.
• Wireless LAN is used for home access, business offices, schools, and universities.
• Example of Wireless LAN is Wi-Fi.
Wide-area wireless access network:
• Wide-area wireless access network use wireless infrastructure used for cellular telephony to send data.
• In Wide-area wireless access network, users can transmit data within a radius of tens of kilometers of the base station.
• Mainly mobile users use wide-area wireless access network.
• Example of Wide-area wireless access network: 3G and 4G.
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