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 Post subject: Wi-Fi Direct
PostPosted: Mon Oct 25, 2010 9:10 am 
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Scanner Gigolo

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You're hiking in the woods with a friend when you snap a picture of a bear with a Wi-Fi camera. You want to instantly send that image to your companion's camera but there's no Wi-Fi hotspot within miles. The promising Wi-Fi Direct technology that the Wi-Fi Alliance says it will start "certifying" in a variety of wireless devices on Monday makes such a scenario possible. The Alliance is an international trade association of more than 350 computer, consumer electronics and service provider companies.

Using Wi-Fi radios embedded in Wi-Fi Direct devices, the promise is that you'll be able to form a connection between gizmos in the absence of a nearby hotspot or Internet connection. The technology can work with Wi-Fi Direct-capable printers, portable gaming devices, cameras and so on.

You might take advantage of Wi-Fi Direct even when you are close to a hotspot. If you're in a coffeehouse say, only one person might have to log into a Wi-Fi account for multiple devices to have an Internet connection. Two or more folks can share apps, play a video game together and more using Wi-Fi direct. Individual users can benefit too. You might wirelessly print pictures off a camera at a kiosk, or display smartphone pictures on a TV.

Wi-Fi Alliance marketing direct Kelly Davis-Felner claims Wi-Fi Direct is both secure (in geeky terms it uses WPA2 technology) and inexpensive. It's a "little bit of software that lives on top of a garden-variety Wi-Fi chipset," she explains. Wi-Fi Direct devices can communicate with older Wi-Fi devices. The Alliance also says that Wi-Direct incorporates power-saving measures to preserve battery life. And Wi-Fi Direct performs at typical Wi-Fi speeds and ranges.

For security reasons you'll have to pair the devices that are communicating with one another, kind of like forming a connection between two Bluetooth devices. You press a button on gadget one, and on gadget two a window pops up asking for permission to connect to gadget one.

Davis-Felner expects products to be out by the holidays. The initial products have the backing of such chip and technology companies as Atheros, Broadcom, Intel, Ralink and Realtek.

I'm looking forward to seeing Wi-Fi Direct in action.

By Ed Baig


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 Post subject: Re: Wi-Fi Direct
PostPosted: Mon Oct 25, 2010 10:04 am 
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I guess these folks didn't realize their current products already support this kind of functionality.


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 Post subject: Re: Wi-Fi Direct
PostPosted: Mon Oct 25, 2010 11:07 am 
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Corporal Cowboy
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Isn't this a fancy way of saying ad-hoc?

Edit: Nevermind. I clicked submit then followed the provided link.

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 Post subject: Re: Wi-Fi Direct
PostPosted: Tue Oct 26, 2010 12:39 pm 
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Samara Lynn at PC Mag wrote:
The most significant difference between traditional ad-hoc wireless networking (traditional peer-to-peer networking) and Wi-Fi Direct is security. In Windows ad-hoc networks, the highest level of security supported is WEP. Wi-Fi Direct, as mentioned, supports WPA2. Another difference, Wi-Fi Direct devices can also simultaneously connect to existing wireless networks. More granular control and better discovery of devices also differentiate Wi-Fi Direct from ad-hoc networking.
http://www.pcmag.com/article2/0,2817,2371413,00.asp


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