Wireless Technology WiFi: Wireless WiMAX Technology

Source(google.com.pk)
Wireless WiMAX Technology
WiMAX is a wireless technology which allows devices to inter-connect and communicate with each other. Radio waves are electromagnetic waves and have different frequencies. This technology is a radio frequency. Similar to the analogue radio, or FM radio. WiMAX works in two frequency bands, 2 - 11GHz and 10 - 66GHz.

WiMAX is Worldwide Interoperability for Microwave Access. The IEEE standard for WiMAX is 802.16 and falls under the category of wireless Metropolitan Area Network (WMAN). WiMAX operates on two frequency bands, 2 - 11GHz and 10 - 66GHz and has a range of about 50km with speeds of upto 80Mbps. This enables smaller wireless LANs to be interconnected by WiMAX creating a large wireless MAN. Networking between cities can beachieved without the need for expensive cabling. It is also able to provide high speed wireless broadband access to users. As it can operate in two frequency bands WiMAX can work by line-of-sight and non-line-of-sight. At the 2 - 11GHz frquency range it works by non-line-of-sight, where a computer inside a building communicates with a tower/antenna outside the building. Short frequency transmissions are not easily disrupted by physical obstructions. Higher frequency transmissions are used for non-line-of-sight service. This enables to towers/antennae to communicate with each other over a greater distance. Due to infrastructure and costs involved it would be more suited to provide the backbone services for ISPs and large corporations providing wireless networking and internet access.

Wireless WiMAX Technology