Really really high speed Wifi

from the invaluable Physorg.com:

Scientists at the Georgia Electronic Design Center (GEDC) at Georgia Tech are investigating the use of extremely high radio frequencies (RF) to achieve broad bandwidth and high data transmission rates over short distances.

Within three years, this “multi-gigabit wireless” approach could result in a bevy of personal area network (PAN) applications, including next generation home multimedia and wireless data connections able to transfer an entire DVD in seconds.

The research focuses on RF frequencies around 60 gigahertz (GHz), which are currently unlicensed -- free for anyone to use -- in the United States. GEDC researchers have already achieved wireless data-transfer rates of 15 gigabits per second (Gbps) at a distance of 1 meter, 10 Gbps at 2 meters and 5 Gbps at 5 meters.

“The goal here is to maximize data throughput to make possible a host of new wireless applications for home and office connectivity,” said Prof. Joy Laskar, GEDC director and lead researcher on the project along with Stephane Pinel.

GEDC’s multi-gigabit wireless research is expected to lend itself to two major types of applications, data and video, said Pinel, a GEDC research scientist.

Very high speed, peer-to-peer data connections could be just around the corner, he believes – available potentially in less than two years.

Devices such as external hard drives,laptop computers, MP-3 players, cell phones, commercial kiosks and others could transfer huge amounts of data in seconds. And data centers could install racks of servers without the customary jumble of wires.

“Our work represents a huge leap in available throughput,” Pinel said. “At 10 Gbps, you could download a DVD from a kiosk to your cell phone in five seconds, or you could quickly synchronize two laptops or two iPods.”

The input-output (I/O) system of current devices cannot approach such speeds.

Moreover, Pinel said, users of multi-gigabit technology could wirelessly connect to any device that currently uses Firewire or USB.

Wireless high-definition video could also be a major application of this technology. Users could keep a DVD player by their side while transmitting wirelessly to a screen 5 or 10 meters away.

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Even when sitting on a user’s desk, Pinel stresses, a multi-gigabit wireless system would present no health concerns. For one thing, the transmitted power is extremely low, in the vicinity of 10 milliwatts or less. For another, the 60 GHz frequency is stopped by human skin and cannot penetrate the body.

The fact that multi-gigabit transmission is easily stopped enhances its practicality in an office or apartment setting, he adds. The signals will be blocked by any wall, preventing interference with neighbors’ wireless networks.