First White Spaces access point gives grandma the Internet

20.04.2011

Rice graduate student Ryan Guerra developed the prototype access point. According to a Rice press release, any Wi-Fi client can connect to it. The access point can automatically shift between conventional Wi-Fi and the White Spaces in unused UHF digital TV signals to create the optimal connection.

The White Spaces access point created the reliable connection that Aguirre's household had been missing. According to a , she now uses the Internet to "view her paychecks, conduct online banking and watch movies. Her 5-year-old grandson likes to play games."

The , making them more attractive and easier to use for unlicensed radios. But as at the time, the term "Super Wi-Fi" is both silly and misleading. Besides using a different frequency, White Spaces channels are 6 MHz wide, compared to 20 or 40 MHz for Wi-Fi. He also points out the physics of terrestrial radio mean that as lower frequency signals extend further, throughput drops.

There is a so-called "White Fi" project in IEEE, specifically, the , with the just-begun task of defining modifications to the 802.11 physical layers and media access control layers to meet the legal requirements for operating in the White Spaces spectrum.

"I don't think an 802.11 standard or Wi-Fi spec is required to make the White Spaces fly," Mathias wrote. "There are lots of possibilities for those dipping into the cognitive radio waters, and, while rural consumer broadband is an enticing possibility, there are many others: municipal and public-utility services, security (as in alarm services, etc.), surveillance (including video), smart grid, telephony, messaging, machine-to-machine, and many, many more."