WiFi Vs WiMax

I was looking the at the Defcon Wifi Shootout 2005 and how the team “iFibir Redwire” was able to extend the Wifi (The Wireless networking) range from the normal (about 45 Meters) to 201 Kilometer!
But I thought these people are professional and we can’t extend our Wifi to reach our friends in the next building without buying extra equipments(more $$), and I wish if we can make a very big network of Wilress network with people and friends cross the town. Just imagine what we can do. Share broadband, play games, etc…

And this is where the new WiMax technology comes in.

WiMax will help bridge the gap between wireless fidelity and wireless telecom networks, giving mobile computer users free, or cheap, wireless access across many miles of terrain, not just inside the office or at a WiFi hot spot, such as a Starbucks store.

Based on the IEEE 802.16 Air Interface Standard, WiMax delivers a point-to-multipoint architecture, making it an ideal method for carriers to deliver broadband to locations where wired connections would be difficult or costly. It may also provide a useful solution for delivering broadband to rural areas where high-speed lines have not yet become available. A WiMax connection can also be bridged or routed to a standard wired or wireless Local Area Network (LAN).

Although it is a wireless technology, unlike some other wireless technologies, it doesn’t require a direct line of sight between the source and endpoint, and it has a service range of 50 kilometers. It provides a shared data rate of up to 70Mbps, which is enough to service up to a thousand homes with high-speed access.

WiMax offers some advantages over WiFi, a similar wireless technology, in that it offers a greater range and is more bandwidth-efficient. Ultimately, WiMax may be used to provide connectivity to entire cities, and may be incorporated into laptops to give users an added measure of mobility.

WiMax requires a tower, similar to a cell phone tower, which is connected to the Internet using a standard wired high-speed connection, such as a T3 line. But as opposed to a traditional Internet Service Provider (ISP), which divides that bandwidth among customers via wire, it uses a microwave link to establish a connection.

Because WiMax does not depend on cables to connect each endpoint, deploying WiMax to an entire high-rise, community or campus can be done in a matter of a couple days, saving significant amounts of manpower.

So if with Wifi they were able to extend the range from 45 meter to 200 KM, I wonder how much they will extend the range.
Well, if you calculate it, the Wifi from 45 meter to 200 KM which is about 4000 times the 45 meter, so the WiMax from 50 KM to …. 200000 KM!! 😀 that’s a country 😛

Hasan Bazerbashi

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