Essay About 3G And Term Wi-Fi

Wimax
Wimax
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WiMAX
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It has been suggested that this article or section be merged with IEEE 802.16.
(Discuss)
WiMAX is defined as Worldwide Interoperability for Microwave Access by the WiMAX
Forum, formed in June 2001 to promote conformance and interoperability of the
IEEE 802.16 standard, officially known as WirelessMAN. The Forum describes WiMAX
as “a standards-based technology enabling the delivery of last mile wireless
broadband access as an alternative to cable and DSL”.
“WiMAX is not a technology, but rather a certification mark, or stamp of
approval given to equipment that meets certain conformity and
interoperability tests for the IEEE 802.16 family of standards. A similar
confusion surrounds the term Wi-Fi, which like WiMAX, is a certification mark
for equipment based on a different set of IEEE standards from the 802.11
working group for wireless local area networks (WLAN). Neither WiMAX, nor
Wi-Fi is a technology but their names have been adopted in popular usage to
denote the technologies behind them. This is likely due to the difficulty of
using terms like IEEE 802.16 in common speech and writing.” – OECD[1]
Contents [show]
1 Uses
1.1 Broadband Access
1.1.1 Limitations
1.2 Mobile applications
2 Technical info
2.1 MAC layer
2.2 Physical layer
2.3 Advantages over Wi-Fi
2.4 Spectrum Allocations issues
3 Standards
3.1 IEEE 802.16e
3.2 HIPERMAN
3.3 WiBro
4 Associations
4.1 WiMAX Forum
4.2 WiMAX Spectrum Owners Alliance – WiSOA
5 Competing technologies
5.1 3G and 4G Cellular Phone Systems
5.2 Internet Oriented Systems
5.3 Comparison
5.4 Future developments and IEEE 802.20
6 Current Deployment
7 See also
8 Notes
9 Literature
10 External links
[edit] Uses
The bandwidth and reach of WiMAX make it suitable for the following potential
applications:
Connecting Wi-Fi hotspots with each other and to other parts of the Internet.
Providing a wireless alternative to cable and DSL for last mile (last km)
broadband access.
Providing high-speed mobile data and telecommunications services.
Providing a diverse source of Internet connectivity as part of a business
continuity plan. That is, if a business has a fixed and a wireless internet
connection, especially from unrelated providers, they are unlikely to be
affected by the same service outage.