WiMax is the popular name of the 802.16 wireless metropolitan-area network standard that's currently being developed. WiMax, which will have a range of up to 31 miles, is primarily aimed at making broadband network access widely available without the expense of stringing wires as in cable-access broadband or the distance limitations of Digital Subscriber Line.
Since the turn of the millennium, wireless networks have proliferated. Wi-Fi, the popular term for the capabilities created by a group of standards from the Institute of Electrical and Electronics Engineers Inc., has freed us to move around our offices and many public places with our laptops and handhelds, yet still have instant, unencumbered access to our companies' intranets and the Internet.
WiMax (Worldwide Interoperability for Microwave Access) is the next step on the road to a wireless world, extending broadband wireless access to new locations and over longer distances, as well as significantly reducing the cost of bringing broadband to new areas.
Among the promises of WiMax is that it could offer the solution to what's sometimes called the last-mile problem, referring to the expense and time needed to connect individual homes and offices to trunk lines for communications. WiMax promises a wireless access range of up to 31 miles, compared with Wi-Fi's 300 feet and Bluetooth's 30 feet.
The popularity of wireless networking has grown very quickly because of effective standardization. Wi-Fi encompasses a family of specifications within the IEEE 802.11 standard [QuickLink 27922]. These include 802.11b (the most popular, at 11Mbit/sec., with a typical range of up to 300 feet), 802.11a (54Mbit/sec., but at a shorter range than 802.11b) and 802.11g (combining the speed of ‘a’ with the range of ‘b’).
WiMax is the new shorthand term for IEEE Standard 802.16, also known as “Air Interface for Fixed Broadband Wireless Access Systems” (Web 3)................
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