Thursday, April 21, 2011

Metropolitan Area Network ,WiMax and VoIP

The emerging IEEE 802.16 standard, commonly recognized as WiMAX, promises to dispense very last mile wireless broadband internet access clever of moving data intensive applications, such as VoIP and streaming tape, to Metropolitan Area Networks, as well as sub-urban and rural communities. WiMAX is considered a disruptive tools, designed as an alternative to fixed line DSL and coaxial technologies, and with its 802.16e revision, the cell phone networks as well.

Worldwide Interoperability in lieu of Microwave AXcess will direct more than approved and non approved frequencies using non line of sight (NLOS) and line of sight technologies, extending broadband coverage to cities and towns wirelessly via a metro area set of connections. Additionally, since of it's far getting capabilities and reduce of implementation, wimax is the individual tools likey to passage the Digital Divide, between unused regions and lightly populated rural areas much more cost effectively than deploying a wireline infrastructure.

While the two technologies might sound the same, they are from their conception designed in lieu of completely atypical applications. WiFi is a unfriendly range standard to facilitate was designed primarily as an delay of the limited area set of connections (LAN) to provide mobility in lieu of the close user. It operates more than unlicensed frequencies and has a range of on the order of 100 meters, depending on obstructions. Typically individual access purpose will be connected to a fixed line set of connections, either a wired LAN or a DSL/cable broadband connection, and the range can be extended by calculation more access points on appropriate distances.

WiMAX, on the other supply, is designed to function as a carrier set of connections, or a wireless Internet service contributor (WISP), blanketing entire cities and regions with broadband Internet access comparable to DSL. Coverage in optimal conditions can connect with 50 kilometers, but in certainty are more like 5 km in lieu of users with NLOS customer premise equipment (CPE), or up to 15 km with a CPE connected to an outside line of sight feeler.