Microsoft Research's 'WiFi-NC' taps unused TV spectrum for improved wireless connectivity

Researchers at Microsoft have developed a new variant of Wi-Fi that allows wireless transmissions to operate at top speeds even in the face of interference. They're calling it "WiFi-NC" — NC for narrow channel — and it works by taking advantage of unused slivers of the television broadcast spectrum. A collection of smaller transmitters and receivers utilize these sections of spectrum, known as "white spaces," and collectively are able to provide the same bandwidth that a traditional wide-channel Wi-Fi radio offers. Since each of these transmitters can hop between the white spaces discretely, the chance for direct interference is lessened, providing transmissions much closer to theoretical li... »read more

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