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Etri Wi-Fi Router Has Half-Mile Range, Beaucoups Bandwidth

This image was lost some time after publication, but you can still view it here.
This image was lost some time after publication, but you can still view it here.

We're looking at our Linksys Wi-Fi router with disdain now that we've discovered how weak it is compared to this Etri Wi-Fi mofo. Besides the Etri router's awesome 240Mbps speed, it has a range far beyond ordinary Wi-Fi, cranking out signals at a claimed range of 100m to 1km. Sheesh. Our Linksys can barely get from one side of the house to the other.

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Etri hops up that speed by using a combination of the 802.11n (so far, that's draft-N), and the MIMO spec that uses multiple signals to increase bandwidth. Plus, its security protocols have been beefed up to keep those curb-dwelling bandwidth suckers off your ass. It's only been demonstrated in Korea so far, but this monster will give you a preview of the Wi-Fi tech that will be commonplace in a year or two.

Long range WiFi router [ubergizmo]

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DISCUSSION

Actually, the "spheres" does work, but instead of intersection, it's more like the antennas have to exist in both spheres. (There is a concept called "hidden receiver" where one station can see a receiver that another one can't, and the "sphere" as described earlier wouldn't make that possible).

Now, it's possible to actually have really sensitive receivers that can pull in the weaker station signals much better than stations can.

But of course, this thing has two issues that I don't see resolvable:

1) Everyone in that 1km radius can now get your signal. Sure there's encryption and all that, but it's also good to prevent too many people from receiving the signal!

2) Interference, or rather, cooperation between other stations/accesspoints/etc. The fact that you can transmit more and receive more also means that you're going to have to schedule packet transmission with the other stations. So you can end up with worse throughput because you're sharing. (Don't even think of just interfering - then no one gets signal).

That's why good accesspoints let you control their output power so you can limit the size of a "cell" and prevent interference amongst other accesspoints.