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Spec offers up to 7Gbps of wireless bandwidth

Wireless networking has changed the way we are able to access data in our homes and offices. Today we can move around the home while downloading documents and file without interrupting access to the internet. In the past, an internet connection meant using wires.

Like most things in the technology world, wireless networking is always looking to gain speed and while the 802.11n specification was only ratified this year there are already new specifications in the works. One of the specs in the works from the Wi-Fi Alliance is 802.11ad. This specification is in the very early stages of development, but promises much higher bandwidth than current specifications and will operate on the 60 GHz spectrum.

The Wireless Gigabit Alliance has completed the specifications for its WiGig technology that promises to deliver enough bandwidth for wireless connections up to 7Gbps. The standard is written but is undergoing editing and IP review before it is made available to partner companies.

The specification is designed to operate on the 60 GHz frequency band, which is unlicensed. The spec will allow the transfer of high bandwidth content such as HD video. The technology is designed to be complementary to WiFi and while no formal ties to the WiFi Alliance are in place, the WiFi Alliance has said that the two specifications should be complementary to each other.

WiGig will come to market in 2011 if all goes well with technologies like HomePNA, HomePlug, Multimedia over Coax, Ultrawideband, and Wireless Home Digital Interface. Originally, the WiGig specification was to be available to members this quarter, but the alliance has not yet set out requirements for Adopter memberships for those who only want integrate the technology into their gear. The specs are already available to member companies who helped develop the specification.

WiGig was originally envisioned as a technology that would allow the transmission of video and other content within the same room for use in streaming video wirelessly from a computer to a display and other uses. The specification was expanded with the use of beam forming technology to be able to operate around a home. WiGig will be backwards compatible with WiFi. Many of the designing companies who worked on WiGig are WiFi firms as well.

Ali Sardi from WiGig Alliance said, "The majority of silicon makers in the WiGig group are Wi-Fi developers, so you can bet when they designed this new spec they were not going to throw out everything they did in the past."



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RE: Nice
By fleshconsumed on 12/10/2009 12:48:35 PM , Rating: 5
One, you can already do 1080p streaming over 11n as long as it's a bluray rip and not bluray disc (no discernible difference in my opinion). Two, I'm no expert on this issue, but I think 60GHz will have range problems, 5GHz routers already have smaller range than 2.4GHz, with 60GHz you will either have to up the power significantly, or place transmitter/receiver closer to each other which kind of defeats the point of wireless.


RE: Nice
By omnicronx on 12/10/2009 2:07:24 PM , Rating: 2
quote:
Two, I'm no expert on this issue, but I think 60GHz will have range problems
And you would be correct, in fact they straight out claim that it is designed for high speed over a relatively small area (from what I've read within 10 meters or around 30 feet). For comparison I have a friend with a 60GHZ adaptor he bought at bestbuy for his TV to transmit 1080p video (no relation to WIGIG) and his TV is a good 20-25 feet from the source.

If anything I'd be more worried about wall penetration, at 60GHZ I really wonder how well this signal can even pass through walls.

What this article leaves out is the fact that it will also have a 'beam-forming feature'(multiple antennas with multiple elements) that will allow use of more than 10 meters.


RE: Nice
By omnicronx on 12/10/2009 2:19:40 PM , Rating: 2
quote:
What this article leaves out is the fact that it will also have a 'beam-forming feature'(multiple antennas with multiple elements) that will allow use of more than 10 meters.
It will also operate asymmetrically, so unlike wireless N, the receiving component does not need to match the number of antennas. (which is the MAJOR downfall of wireless N, especially for use with portable devices in which this is rarely possible.)


RE: Nice
By amanojaku on 12/10/2009 2:25:53 PM , Rating: 4
The general rule of thumb is that distance is inversely proportional to the frequency. Add to that the fact that the 60GHz range is specifically chosen because it is readily absorbed by Oxygen, further limiting its distance. At a general operating distance of 10 metres WiGig is meant to complement WiFi, not replace it.


RE: Nice
By Samus on 12/11/2009 5:52:09 AM , Rating: 2
What's wrong with the 9GHz-12GHz spectrum, basically nothing uses it? 60GHz? Just watch you won't get full speed is your a meter away. And I agree with Omni, this is barely going to push through drywall at that frequency.


RE: Nice
By dagamer34 on 12/10/2009 6:46:54 PM , Rating: 2
@fleshconsumed

While there is MORE than enough bandwidth for Blu-ray streaming, because of packet loss, it's not as smooth as it really needs to be. I've tested this on multiple computers using an 802.11n 5Ghz network. For Blu-ray streaming, wired is always the best way to go.


RE: Nice
By FoxFour on 12/11/2009 2:07:14 PM , Rating: 2
quote:
One, you can already do 1080p streaming over 11n as long as it's a bluray rip and not bluray disc (no discernible difference in my opinion).


Except that one is illegal while the other may be legitimate.


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