Wi-Fi Direct Overlaps Bluetooth Territory For Connecting Devices 152
Reber Is Reber writes "The Wi-Fi Alliance announced a new wireless networking specification which will enable devices to establish simple peer-to-peer wireless connections without the need for a wireless router or hotspot. Wi-Fi Direct has a wide array of potential uses, many of which encroach on Bluetooth territory and threaten to make the competing wireless protocol obsolete. 'Wi-Fi Direct represents a leap forward for our industry. Wi-Fi users worldwide will benefit from a single-technology solution to transfer content and share applications quickly and easily among devices, even when a Wi-Fi access point isn't available,' said Wi-Fi Alliance executive director Edgar Figueroa. 'The impact is that Wi-Fi will become even more pervasive and useful for consumers and across the enterprise.' Ad hoc wireless networking has always been more complex and cumbersome than it is worth, and it maxes out at 11 mbps. Wi-Fi Direct will connect at existing Wi-Fi speeds-- up to 250 mbps. Wi-Fi Direct devices will also be able to broadcast their availability and seek out other Wi-Fi Direct devices. Wi-Fi Direct overlaps into Bluetooth territory. Bluetooth is a virtually ubiquitous technology used for wireless connection of devices like headphones, mice, or the ever-popular Bluetooth earpiece sticking out of everyone's head. Bluetooth uses less power, but also has a much shorter range and slower transfer speeds. Wi-Fi Direct can enable the same device connectivity as Bluetooth, but at ranges and speeds equivalent to what users experience with existing Wi-Fi connections."
Security (Score:5, Insightful)
Wi-Fi Direct will include support for WPA2 (Wi-Fi Protected Access 2) and AES encryption for more secure connections and measures are being developed to enable IT admins to exert some control over Wi-Fi Direct networks within their environment.
Please don't "include support"
You're writing the spec, REQUIRE THAT IT BE USED.
We're in the 21st century, security should no longer be an after thought.
Re:Sounds good (Score:4, Insightful)
Also, with phones, bluetooth makes a bit more sense to me
Indeed. I don't need to use my car's mic/speaker system with my cell phone while the phone is 50 to 100 feet (or more) from the car, but I do want to squeeze as long of life out of my cell phone's battery as I can.
The same applies to my laptop's mouse, or my Wiimotes, or indeed anything else that I have that currently uses Bluetooth.
Mesh WiFi sounds good if it means I can leech WiFi off generous people acting as mobile bridges to their cell provider's unlimited data plan. But in terms of revolutionizing devices, it doesn't.
Aren't they overlooking something? (Score:3, Insightful)
What about the difference between Wi-Fi being DSSS (direct sequencing spread spectrum, meaning it uses one fixed slice of the spectrum) vs Bluetooth's FHSS (frequency hopping spread spectrum, meaning it hops around the spectrum in a pseudorandom way such that multiple bluetooth devices will never interfere with each other)? Unless the new Wi-Fi standard includes something smarter than "default to channel 6" these devices will not be as friendly to each other as Bluetooth.
Re:-1 Paranoid (Score:2, Insightful)
Re:"bluetooth uses less power" (Score:3, Insightful)
Pretty close [ikontools.com].
Re:P2P=Pirate2Pirate (Score:2, Insightful)
Good thing words can't have two meanings.
Oh wait, they can. And "piracy" has been used to refer to copyright infringement for over three centuries now ("The practice of labeling the act of infringement as "piracy" actually predates copyright itself." [wikipedia.org]) so I'd say it's a pretty damn well-established term. It's not like "intellectual property" or something that's been coined recently.
In related news... (Score:4, Insightful)
...as we speak, we have Pre-Wi-Fi Direct hardware available.
In the coming years you can expect
Draft-WiFi Direct
Final Draft-Wifi Direct
and eventually Wifi-Direct hardware from manufacturers