Internet for Farmers via Unused UHF Spectrum

by Jeremiah on September 10, 2014

UHFnet

The holy grail of wireless communications is to go both fast and far. Usually, you can have one or the other but not both. Wireless local area networks today can serve data very fast, but one brick wall and they’re done. UHF can travel far, but it hasn’t had the high capacity of WiFi.
~ Edward Knightly, professor and chair of Rice’s Department of Electrical and Computer Engineering

Researchers from Rice University’s Wireless Network Group recently found a way to make use of a slice of the radio spectrum that is traditionally reserved for TV broadcasts – generally known as UHF – to transmit internet signal.

For this they created a multiuser, multiantenna transmission scheme that works by serving up fat streams of data over a network of wireless hotspots that could stretch for miles. In order to be able to leverage the best characteristics of the UHF band, their system efficiently uses the band to serve multiple users over the same channel simultaneously.

This will create greater internet coverage that will reach rural areas that are currently still in the dark ages has no current internet connectivity. Each user will need a simple special antenna and a modem and they will be able to connect with the rest of the world.

[Source]

UHFnet

UHFnet

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