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Wi-Fi CERTIFIED Wi-Fi Direct™:Connect with the possibilities
Wi-Fi Alliance
October 25, 2010
2Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
Agenda
• Background and market context
• Introduction to Wi-Fi CERTIFIED Wi-Fi Direct
• Wrap-up
• Background: Detailed technology overview
Background and market context
4Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
Wi-Fi Alliance Vision
Wi-Fi as the center
of seamless
connectivity,
providing the best
connected experience
across devices,
market segments,
and geographies
5Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
Wi-Fi Alliance snapshot
• International trade association of 350+
computing, handset, consumer
electronics makers and service
providers
• Industry leader and collaboration forum,
innovating for 11 years to meet the
needs of a wide variety of users and
use environments
• Enabling worldwide Wi-Fi adoption and
inclusion in a wide array of devices
through testing, market building, and
regulatory programs
• Wi-Fi CERTIFIED™ products deliver
advanced technology, the best user
experience and the latest security
protections
Full
list
of
mem
ber
co
mp
an
ies
at
ww
w.w
i-fi
.org
6Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
Consumer electronics and handhelds: Now 50% of Wi-Fi device shipments and growing
26% CAGR
2010-2014
33% CAGR
2010-2014
Introducing Wi-Fi CERTIFIED Wi-Fi Direct™
8Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
Wi-Fi CERTIFIED Wi-Fi Direct is personal Wi-Fi networking that goes anywhere
• Connects devices directly, with or without a Wi-Fi network or hotspot available
• Makes the connection to open a world of applications, including content sharing,
synch, printing, gaming and more
• Easy to use and secure
• Wide variety of devices
from many vendors
• Connects with almost
any Wi-Fi CERTIFIED
device
• Designed for portable
and stationary devices
9Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
Wi-Fi Direct: Useful today, safe and easy
• Connecting is easy
– Wi-Fi Direct devices discover one
another and in some cases, the
services available
– Establishing the connection can
be as simple as pressing a button
• Connections are protected by
WPA2™ security
• Connect two or more devices,
including legacy Wi-Fi
CERTIFIED gear
Connections can be one-to-one or one-to-many.
Legacy devices connect to a Wi-Fi Direct device.
10Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
Wi-Fi Direct: Wi-Fi evolves to meet consumers where they are today
Now, more than ever…
• Content travels everywhere
– On average, young Americans carry 1,159 songs,
51 videos, and 1,188 photos with them on digital
devices*
– Many different devices capture, store, and use content
on the go: handsets, cameras, tablets, PCs, personal audio
players, and more
• Connectivity is crucial
– 75% of young Americans would give up coffee before
giving up Wi-Fi*
– 85% are more likely to carry a handheld digital device
than a watch*
– 67% spend more time using a Wi-Fi enabled device
than watching television
* Wi-Fi Alliance and Wakefield Research, September 2010
** Nielsen, September 2010
11Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
Wi-Fi Direct: Wi-Fi evolves to meet consumers where they are today
Now, more than ever…
• It’s all about the applications
– 50% year-over-year growth in app usages on
portable devices**
– iPhone users have an average of 40 apps installed,
Android users have 25 apps, and Blackberry users
have 14**
• Technology is social
– 64% of young Americans say Wi-Fi helps them
maintain relationships with their friends*
– Young Americans report they often gather around
devices for entertainment:
• 95% have gathered around a camera to look at pictures
• 84% have gathered around a gaming device
• 94% have gathered around a laptop to watch a video
* Wi-Fi Alliance and Wakefield Research, September 2010
** Nielsen, September 2010
12Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
Wi-Fi Direct changes the game
“Wi-Fi Direct is a game-changing advance for Wi-Fi technology. As people
continue to increase the number of devices and the amount of content they carry,
Wi-Fi Direct extends an already-compelling technology into an even more useful,
convenient solution for all the things people want to do with their devices.”
-- Victoria Fodale, ABI Research, October 2010
13Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
Wi-Fi CERTIFIED Wi-Fi Direct devicetesting began this week
• Wi-Fi CERTIFIED delivers interoperability and reliability that are at the
foundation of Wi-Fi’s success
• Wi-Fi Alliance has begun testing and certifying Wi-Fi Direct devices in labs
worldwide
• The first Wi-Fi CERTIFIED Wi-Fi Direct devices have been announced, and
form the Wi-Fi Direct interoperability test suite
– Atheros XSPAN® Dual-band 802.11n PCIe Mini Card (AR928x)
– Broadcom BCM43224 Dual-Band 802.11n 2x2 MIMO PCIe Half Mini Card
– Intel® Centrino® Advanced-N 6200
– Ralink MIMObility 802.11n 2x2 PCIe Half Mini Card
– Realtek RTL8192CE-VA4 HM92C00 PCIe mini card
• Only devices marked Wi-Fi CERTIFIED Wi-Fi Direct have been certified by the
Wi-Fi Alliance to work well with other Wi-Fi CERTIFIED devices, have the latest
security protections, and deliver the best user experience
Wrap-up
15Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
Thank you!
• Wi-Fi Direct is personal Wi-Fi that
connects devices anywhere
• Wi-Fi Direct enables today’s connected
and content-rich lifestyle
• White papers, video animation, FAQ
and more available at www.wi-fi.org
• Points of contact:
– facebook.com/wificertified
– Twitter: wifialliance
Wi-Fi Direct and the Peer-to-Peer Specification
A more detailed look
17Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
Wi-Fi is the best choice for task-oriented dynamic connection of device groups
• Wi-Fi Direct certification brings the compelling combination of ubiquity, no-
wires convenience, performance, and proven technology
• More than 700 million people use Wi-Fi today – it is one of the best-known,
best-loved technologies in the world
• The technology underlying Wi-Fi Direct works with hundreds of millions of
legacy Wi-Fi CERTIFIED products in use today (802.11 a/g/n)
• Wi-Fi Direct brings typical Wi-Fi speed and range
• Easy configuration with Wi-Fi Protected Setup™ and WPA2 security
• Connects to IP-based home network devices
• Leverages standards-based power saving and QoS mechanisms
18Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
How the technology behind Wi-Fi Direct works:All devices support one-to-one configuration
• This configuration will be very common
• Allows consumer devices to connect directly to one another to
exchange content or share applications
• Print pictures directly from a camera
• Synch contacts from phone to PC
• Play a video game on two devices
• Display pictures from a phone to a television
19Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
How the technology behind Wi-Fi Direct works:All devices include Wi-Fi Protected Setup
• Formation of a Wi-Fi Direct connection requires active agreement: one device
must request access, and the other device grants permission
• Wi-Fi Direct connections are formed using mechanisms specified in Wi-Fi
Protected Setup. A connection process might look like this:
1. Press the push-button on Device 1 (e.g. handset or camera)
2. A window pops up on Device 2 indicating that Device 1 is trying to connect and asking
for permission to connect
3. Once acknowledgement is provided, a security-protected
connection is established
• As with traditional Wi-Fi networks, users should only
connect with trusted devices/people
20Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
How the technology behind Wi-Fi Direct works: All Wi-Fi Direct devices include WPA2 security
• Active Agreement: Connecting Wi-Fi Direct-certified devices requires active
agreement: one device must request access, and device controlling the group
grants permission
• Partition helps ensure security:
– Enterprise environment (access to printer w/o network); home (let your kid’s hacker
friend connect directly for gaming rather than full access)
– When cross connected to a traditional network, Wi-Fi Direct groups operate in an
independent security domain
• All Wi-Fi Direct-certified devices support WPA2 security protections. Only
authorized devices are permitted to connect, and transmissions over the air are
encrypted using government-grade AES (Advanced Encryption Standard)
21Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
How the technology behind Wi-Fi Direct works:All devices support power saving mechanisms
• Efficient use of power is critical for portable battery-operated devices
• All Wi-Fi Direct-certified devices implement power management mechanisms to
reduce power consumption while preserving discovery capabilities
– Includes adaptations of existing Wi-Fi power save mechanisms
– Adds two new mechanisms that enable power savings for active groups:
• Opportunistic power save
• Notice of absence
22Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
How the technology behind Wi-Fi Direct works:Some devices support one-to-many configuration
• This configuration enables
multiple devices to connect and
replaces numerous cables on a
single technology
• Many devices connect at once
• Printer
• Speakers
• Monitor
• Camera
• Examples: Multi-player gaming;
Sharing images/presentation with a group
• This is an optional feature; not all Wi-Fi Direct-certified devices can
connect to multiple other devices
23Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
How the technology behind Wi-Fi Direct works:Some devices include concurrent connection
• Devices can link directly to a group
of Wi-Fi Direct-certified devices,
but can also share a network connection
with the group
• Two separate security domains are in
place. The group security domain is
set up via Wi-Fi Protected Setup,
and the WLAN security domain may be
set up with Wi-Fi Protected Setup
(consumer networks) or other mechanism (enterprise environments)
• Management features defined in the underlying specification can enable IT
managers to prevent this type of cross-connection
• This is an optional feature; not all Wi-Fi Direct devices can support
simultaneous WLAN connection
24Wi-Fi CERTIFIED Wi-Fi Direct™: Connect with the Possibilities
How the technology behind Wi-Fi Direct works:Devices in managed environments
• The technology behind Wi-Fi Direct operates in an independent security domain
when one device is also connected to a traditional Wi-Fi network. This prevents
unauthorized devices from accessing the network.
• Efficiency – Wi-Fi Direct-certified devices do not use .11b rates to maximize
available bandwidth
• Visibility – All Wi-Fi Direct-certified devices advertise their presence and settings
• AP Management – APs can be enabled to communicate acceptable policies and
disconnect any Wi-Fi Direct-certified devices that do not comply from the
infrastructure network
• Optional – Wi-Fi Direct-certified devices with optional mechanisms can support
management of the environment by signaling coexistence, channel and power
information to the AP