Conquering the 802.11ac Shift

1. Conquering the
802.11ac Shift
Bill Rubino – Cisco Mobility Solutions Marketing Manager
Mark Denny – Cisco Mobility Product Manager

2. Why Gigabit Wi-Fi
802.11ac

3. Why Gigabit Wi-Fi…Now!
802.11ac
1 Cisco VNI Global Mobile Data Forecast 2012-2017, 2 ABI Research, 3 Nemertes Research Global Mobile Research
2013

4. Need for 802.11ac Driven By Device and Application
Growth
2014
Mobile Device
Growth
App. Access by
Mobile Device2
(2014 to 2017)
Email / Calendar 28% Growth
Collaboration 45% Growth
Productivity 53% Growth
Custom Business 63% Growth
UC / IP Telephony 64% Growth
Virtual Desktop 79% Growth

5. Why Cisco for Gigabit Wi-Fi
802.11ac

6. Cisco Public 6© 2015 Cisco and/or its affiliates. All rights reserved.
The All Wireless Office
• New offices and/or retro fitting existing locations
• A shift in how the day to day business is run
• Increased collaboration and flexible workspaces
• Step 1: High-speed Wireless for all end users
• Step 2: Migrate Printers to Wireless
• Step 3: Migrate wired VoIP to Wireless VoIP
handsets and Softphones
• Smaller focused areas of coverage per AP - ~2500
and shrinking, -65db or better signal strength

7. Not All Gigabit Wi-Fi Solutions are Created Equal
802.11ac
All Gigabit
Wi-Fi
Vendors
802.11ac
with HDX
Cisco is the ONLY
SOLUTION with High-
Definition Experience
Technology (HDX)

8. Cisco Public 8© 2015 Cisco and/or its affiliates. All rights reserved.
Cisco High Density Experience (HDX) for 802.11ac Wi-Fi
Cisco CleanAir® 80Mhz
Optimized Roaming
Turbo Performance
Cisco ClientLink 3.0
Noise Reduction
Dynamic BW Selection*

9. Cisco Public 9© 2015 Cisco and/or its affiliates. All rights reserved.
Cisco 802.11ac
and HDX Technology

10. Cisco Public 10© 2015 Cisco and/or its affiliates. All rights reserved.
10Base-T
1990 1995
100Base-T
2000 2005 2010
802.11
802.11g
802.11n
1000Base-T
2015
802.11ac
SpeedAdoption
• >50% of enterprise traffic
will originate on Wi-Fi by
2017 (Cisco VNI)
• 50% of all new Wi-Fi
devices in 2014 will be
802.11ac capable (ABI
Research)
• Wave 1 802.11ac has 5+
years of affectivity for
Smartphones and Tablets
• Wave 1 802.11ac
improves battery
efficiency by 2X for
Smartphones, Tablets,
and Laptops
Compiled from multiple sources: Gartner, ABI, IDC, VNI
Access Networking Trends The Age of Gigabit Wi-Fi…

11. Cisco Public 11© 2015 Cisco and/or its affiliates. All rights reserved.
4SS
Laptops, Content Delivery
Devices
3SS Laptops, Desktops
2SS Tablets, Laptops
1SS Smartphones, Tablets
*Assuming 80 MHz channel is available
and suitable
**Assuming 160 MHz channel is
available and suitable
802.11 802.11n802.11b 802.11a/g
802.11ac
Wave 1
802.11ac
Wave 2
2
11
24
54
65
600
450
300
6900** 6900**
3500**
2340**
1300*
430* 430*
= Connect Rates (Mbps)
= Spatial StreamsSS
1997 1999 2003 2007 2013 2015
Gigabit
EthernetUplink
2Gigabit
EthernetUplinks
870*
8SS
4SS
3SS
@ 160
802.11 Technology Evolution
1300* 3SS
@ 80
1SS

12. Cisco Public 12© 2015 Cisco and/or its affiliates. All rights reserved.
802.11n 802.11n
IEEE Specification
802.11ac Wave 1
Today
802.11ac Wave 2
WFA Certification
Process continues
802.11ac
IEEE Specification
Band 2.4 GHz & 5 GHz 2.4 GHz & 5 GHz 5 GHz 5 GHz 5 GHz
MIMO Single User (SU) Single User (SU) Single User (SU) Multi User (MU) Multi User (MU)
PHY Rate 450 Mbps 600 Mbps 1.3 Gbps 2.34 Gbps – 2.6 Gbps 6.9 Gbps
Channel
Width
20 or 40 MHz 20 or 40 MHz 20, 40, 80 MHz
20, 40, 80, 80-80, 160
MHz
20, 40, 80, 80-80, 160
MHz
Modulation 64 QAM 64 QAM 256 QAM 256 QAM 256 QAM
Spatial
Streams
3 4 3 3-4 8
MAC
Throughout*
293 Mbps 390 Mbps 845 Mbps 1.52 Gbps – 1.69 Gbps 4.49 Gbps
* Assuming a 65% MAC efficiency with highest MCS
Comparing 802.11n with 802.11ac

13. Cisco Public 13© 2015 Cisco and/or its affiliates. All rights reserved.  Cisco AP 3700
Wave 1 first ship
 First Wave 1 USB client
 First home wireless router
 802.11ac AP inflection point
Anticipated WFA Wave 2 Certification
Currently in the definition phase by WFA
 Intel Wave 1 AC-7260 chip
 WFA Wave 1 Certification
CY
 802.11ac AP
portfolio build out
 All new clients 11ac Wave 1 enabled
 IEEE Ratification of 802.11ac
 First Apple products
MacBook Air, Pro Retina
 First Wave 1 Smartphones
(Samsung Galaxy S4, HTC One, ZTE)
 Cisco Introduces First Enterprise class
Wave 1 802.11ac AP radio
 Wave 1 802.11ac module for the AP 3600
2012 2013 2014 2015 2016CY
 Wave 2 consumer Clients
and AP’s e.g. Xaomi, Linksys
 Wave 2 more Smartphones,
Tablets and Laptops
 Wave 2 Enterprise AP’s anticipated
802.11ac Market Inflection Point

14. Cisco Public 14© 2015 Cisco and/or its affiliates. All rights reserved.
802.11ac Wave 2 continues the Transition to All Wireless
Wave 2 Feature What it Delivers Additional Insight
Multi User MIMO
MU-MIMO
End user benefit: simultaneous communication to
multiple devices;
Improved network efficiency and increased overall
network throughput
A single AP may transmit different
spatial streams to multiple receivers
simultaneously (concurrent or parallel)
160 MHz Channels Increased speed and provides additional spectrum
capacity, also utilized by MU-MIMO on the downlink
Channel size is doubled from 80 MHz,
doubling the speed
Extended 5 GHz channel
support
Improved performance in 5 GHz by spreading the
Wi-Fi load across more channels
Providing more channels to customers for channel
planning and management, resulting in less network
overlapping and less interference
Devices (AP’s and Clients) supporting an
expanded set of channels in the 5 GHz
band.
4 SS Increased speed and provides additional spectrum
capacity utilized by MU-MIMO on the downlink
Increases the number of spatial streams
from 3 to 4, increasing speed by 33%
No 4SS Clients coming anytime soon

15. Cisco Public 15© 2015 Cisco and/or its affiliates. All rights reserved.
How 802.11ac SU-MIMO works
Single-User MIMO (SU-MIMO)
Prior to Wave 2 an AP communicates with a
single client at a time

16. Cisco Public 16© 2015 Cisco and/or its affiliates. All rights reserved.
How 802.11ac Wave 2 MU-MIMO Works
Wave 2 introduces MU-MIMO - An AP can
communicate with up to 3 clients at a time -
Maintain full spectrum utilization
Multi-User MIMO (MU-MIMO)

17. Cisco Public 17© 2015 Cisco and/or its affiliates. All rights reserved.
Client-1
3SS M9 80MHz
Client-2
1SS M9 80MHz
Client-3
1SS M9 80MHz
Client-4
1SS M9 80MHz
Client-5
2SS M9 80MHz
AP Peaks @ 1300 Mbps
Maximum PHY Rate
Sustained
Client-6
1SS M9 80MHz
Client-7
3SS M9 80MHz
Multi User MIMO (MU-MIMO)
Client-1
3SS M9 80MHz
Client-2
1SS M9 80MHz
Client-3
1SS M9 80MHz
Client-4
1SS M9 80MHz
AP Peaks @ 1300 Mbps
Maximum PHY Rate
AP @ 433 Mbps
Single User MIMO (SU-MIMO)
Access Point talks with 1 Client at a Time
Full utilization of the shared spectrum is not maintained
75% of the time on the shared spectrum is occupied by
transmissions to less efficient clients
Access Point talks with up to 3 Clients at a time
Maintaining full utilization of the shared spectrum is the goal !!!

18. Cisco Public 18© 2015 Cisco and/or its affiliates. All rights reserved.
Multi-User MIMO (MU-MIMO)
Occurs when TxBF is able to focus the RF at a client while creating a null to the other clients
With TxBF we have 4 antennas, and can
place the signal anywhere we want
While TxBF (directing) the signal at say
User1, you have to also create a NULL or
lower signal for Users 2 & 3 etc.

19. Cisco Public 19© 2015 Cisco and/or its affiliates. All rights reserved.
Multi-User MIMO (MU-MIMO)
Performs TxBF, while nulling and also sending similar size data packets using 4th antenna TxBF
Each Wave-2 client sends CSI (Channel State
Information) about how to best beam-form to it.
The AP then determines how it will beam-form
and null to each of the 2 or 3 clients and then
clusters these “ideal” clients into groups.
On a per-packet-basis each member of a group
receives a similar size packet at the same time
(downstream).
Efficient grouping and scheduling will be critical
to optimize the impact of MU-MIMO
AP is using the 4th antenna to beam-form and
null.

20. Cisco Public 20© 2015 Cisco and/or its affiliates. All rights reserved.
Wireless Spectrum Management
Reforming 5 GHz to Optimize for 802.11ac
• More non-overlapping channels enabling better 802.11ac experience
• 6x 80 MHz channels (5 in Canada and Europe)
• 2x 160 MHz channels (1 in Canada)
• Additional 5GHz spectrum liberalization (5.35-5.47 GHz and 5.85-
5.925 GHz) allows
Channel Bandwidth
(MHz)
No. of Non-
overlapping Channels
20 37
40 18
80 9
160 4
Future 5GHz Opportunity

21. Cisco Public 21© 2015 Cisco and/or its affiliates. All rights reserved.
• 5.0 GHz Gigabit WLAN to leverage more and cleaner channels / spectrum
• Access Point area of coverage ~2,500 sq. feet and shrinking
• Consistent -65 RSSI to solve for Data, Voice, Video, Location, and Capacity
• 10 - 20% cell overlap to optimize roaming and location calculations
• Separate SSIDs for Corporate and Guest Access with Guest being Rate Limited
Important “Best Practices” for 802.11ac Wave 1 or 2
802.11ac Wave 1
• 40 to 80 MHz channel width – 1 cable for GE
802.11ac Wave 2
• 80 to 160 MHz channel width – 1 or 2 cables
Cable Category
• Category 5E or better recommended
Wi-Fi Signal Strength - RSSI
• -65 = Data, Voice, Video, Location, High Density
• 1 Access Point per 2,500 square feet / every 50 feet
• -67 = Data, Voice, Multicast Video, Unicast Video,
Location
• -70 = Data, Unicast Video
• -72 = Data

22. Cisco Public 22© 2015 Cisco and/or its affiliates. All rights reserved.
Improve Wireless Performance Everywhere
Gigabit Wi-Fi for Any Size Organization / Any Business Model
Indoor/Outdoor
MR34
Outdoor
1570
NEW
1700
NEW
Indoor
Indoor
2700
Indoor
3700
3600
On-Premise Cloud-Managed
WAP371
Indoor
MR32
MR72
2.5m+ Units
of 11ac
Shipped

23. Cisco Public 23© 2015 Cisco and/or its affiliates. All rights reserved.
Cisco High Density Experience (HDX) for 802.11ac Wi-Fi
Cisco CleanAir® 80Mhz
Optimized Roaming
Turbo Performance
Cisco ClientLink 3.0
Noise Reduction
Dynamic BW Selection*

24. Cisco Public 24© 2015 Cisco and/or its affiliates. All rights reserved.
Turbo Performance: Higher Throughput for More Devices
DRAM (512)
5GHZ Radio
OFF THE SHELF SILICONCISCO CUSTOM SILICON
CPU
DRAM (128)CPU
DRAM (128)CPU
2.4GHZ Radio
THE CISCO ADVANTAGE
Keep up with 802.11ac and High
Density: CPU and Memory Dedicated to
Each Radio

25. Cisco Public 25© 2015 Cisco and/or its affiliates. All rights reserved.
RF Turbo Performance – Greater Scalability
0
50
100
150
200
250
300
350
5 10 15 20 25 30 35 40 45 50 55 60
MegabitsPerSecond
Number Of Clients
TCP Downlink Throughput 5GHz Multi-Client: Sixty 802.11ac Clients
Cisco
3702i
Nearest
Competitor

26. CleanAir Detect and Classify
High-resolution interference detection and classification logic
built-in to Cisco’s Wi-Fi chip design.
Detect and Classify
Interference
• Uniquely identify and track multiple
interferers
• Assess unique impact to Wi-Fi
performance
• Monitor Air Quality
Microwav
e
63
Rogue
AP
100
Wireless
Phone
67
Security
Cameras
90
Bluetooth
Headset
63

27. Air Quality Index
• Air Quality is a measurement of non-wifi and
adjacent channel interference
• All Individual devices when Classified are assigned a
Severity Value
• Air Quality is a measure of all Devices/Severities
within a Radio, Floor, Building, or Campus
Good
Bad
Information passed from the AP to controllers is minimal:
it all happens on the AP

28. CleanAir – Locate and Mitigate
Mitigate
Wireless LAN Controller
Maintain Air Quality
GOODPOOR
CH 1 CH 11
Locate
PRIME, MSE
Visualize and Troubleshoot
 Classification processed on
Access Point
 Interference impact and data
sent to WLC for real-time
action
 WCS and MSE store data for
location, history, and
troubleshooting
Cisco CleanAir Technology integrates interference information from
the AP into the entire system

29. Cisco Public 29© 2015 Cisco and/or its affiliates. All rights reserved.
Cisco ClientLink:
Improves Downlink Performance for ALL Devices
Boost signal strength
wherever you are and as you
move for 802.11a/g/n/ac clients
Improved Performance For All Clients
1SS 1SS 2SS 3SS
802.11a/g/n/ac
ClientLink 3.0 Beamforming

30. Mobile World Congress 2015 Network Usage
Summary
Sunday Monday Tuesday Wednesday Thursday Total / Peak
Data Exchanged n.a. 12.5 TB 12.7 TB 11.6 TB 6.2 TB 43 TB
Wi-Fi Data Exchanged n.a. 4.7 TB 5.5 TB 4.3 TB 2.9 TB 17.5 TB
Total Wi-Fi unique
associated devices
13,607 57,288 63,832 58,375 35,442 90,618
Peak associated devices
simultaneously
5,851 26,663 30,536 27,936 18,782 30,536
5 GHz vs 2.4 GHz 64% / 36% 78% / 22% 87%/13% 79% / 21% 78% / 22% 87%/13%
802.11ac client max % n.a 29% 35% 28% 29% 35%
IPv4 vs IPv6 (traffic) 97% / 3% 85% / 15% 88%/12% 93% / 7% 83% / 17% 83% / 17%
Wi-Fi Peak Internet traffic 300Mbps 1.1 Gbps 1.2 Gbps 1.3 Gbps 835 Mbps 1.3 Gbps
Peak Internet traffic n.a. 2.8 Gbps 3.0 Gbps 2.9 Gbps 1.9 Gbps 3.0 Gbps
Connected
By
Cisco

31. Cisco Public 31© 2015 Cisco and/or its affiliates. All rights reserved.
• 25,936 Unique Devices - ~37% of total attendance
• 17,322 Peak Concurrent Devices - ~25% of total attendance
• 51% of devices on 5 GHz
• 50% of 5 GHz devices 802.11ac
• 6.2 TB of Total Data for the life of the event
• 2.5 TB Download
• 3.7 TB Upload
Super Bowl 49 2015 Network Usage
Summary
Connected
By
Cisco

32. 802.11ac with HDX Success
University of New South
Wales
WHO THEY ARE
• One of Australia Leading
Research and Teaching
Universities
CHALLENGE
• Extend Pervasive Wireless to
high-density areas including
classrooms and libraries
SOLUTION
• 3700: 802.11ac with HDX.,
3600 With 802.11ac Module
Houston Methodist Hospital
WHO THEY ARE
• Leading Academic Med.
Center with 4 Hospitals
CHALLENGE
• Provide coverage for BYOD
and Medical Imaging and
Video Collab.
SOLUTION
• 3700: 802.11ac with HDX
Technical University of
Applied Sciences Wildau
WHO THEY ARE
• Largest University of Applied
Science in Brandenburg
Germany with 3200 Students
CHALLENGE
• Deploy pervasive & high-
density coverage throughout
the campus including Dorms
and classrooms
SOLUTION
• 3700: 802.11ac with HDX

33. • Company to deliver 4X4 MIMO
• To commit to 802.11ac
• To receive certification by Wi-Fi Alliance
• To ship 802.11ac enabled Wireless Controllers and Access
Points
• To Commit to 802.11ac Wave 2 Module for a future proof
solution
• To ship over 2.5 Million 802.11ac Enterprise Access Points
• Company to develop purpose-built chip set
• Company to deliver a modular access point
Officer and Contributor to the 802.11ac Amendment
Why Cisco for Gigabit Wi-Fi / 802.11ac

34. Cisco Public 34© 2015 Cisco and/or its affiliates. All rights reserved.
Key Takeaways
Twitter:
• @Cisco_Mobility
Facebook:
• facebook.com/CiscoWireless
Collateral and Blogs
• cisco.com/go/wireless
• cisco.com/go/80211ac
• blogs.cisco.com/wireless/
Independent Performance Data
nsashow.com – Search for 2702
miercom.com – Search for 3702 and 1570