conquering the 802.11ac shift

Conquering the 802.11ac Shift

Bill Rubino – Cisco Mobility Solutions Marketing Manager

Mark Denny – Cisco Mobility Product Manager

Why Gigabit Wi-Fi 802.11ac

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

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

Why Cisco for Gigabit Wi-Fi 802.11ac

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

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)


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*


Cisco 802.11ac and HDX Technology


10Base-T

1990 1995

100Base-T

2000 2005 2010

802.11

802.11g

802.11n

1000Base-T

2015

802.11ac

Sp

eed

Ad

op

tion

• >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…


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

802.11 802.11n 802.11b 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 Streams SS

1997 1999 2003 2007 2013 2015

Gig

abit

Eth

ern

et

Uplin

k

2 G

igabit

Eth

ern

et

Uplin

ks

870*

8SS

4SS

3SS

@ 160

802.11 Technology Evolution

1300* 3SS

@ 80

1SS


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

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 2016 CY

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


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


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


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)


Client-1 3SS M9 80MHz





AP Peaks @ 1300 Mbps Maximum PHY Rate

Sustained



Multi User MIMO (MU-MIMO)





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 !!!


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.


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.


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


• 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


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


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*


Turbo Performance: Higher Throughput for More Devices

DRAM (512)

5GHZ Radio

OFF THE SHELF SILICON CISCO 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


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

Megabits P

er

Second

Number Of Clients

TCP Downlink Throughput 5GHz Multi-Client: Sixty 802.11ac Clients

Cisco 3702i Nearest Competitor

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

Microwave

63

Rogue AP

100 Wireless Phone

67

Security Cameras

90

Bluetooth Headset

63

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

CleanAir – Locate and Mitigate

Mitigate Wireless LAN Controller

Maintain Air Quality

GOOD POOR

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


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

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


• 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

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

• 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


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

http://www.miercom.com/2014/12/cisco-aironet-2702i/

http://www.miercom.com/2013/11/cisco-aironet-ap3702i/

http://www.miercom.com/2015/01/cisco-aironet-1570-series/

http://www.facebook.com/CiscoWireless

http://www.cisco.com/go/wireless

http://www.cisco.com/go/80211ac

http://blogs.cisco.com/wireless/

conquering the 802.11ac shift

Technology

cisco andor

cisco public

hdx cisco

ac wifi cisco cleanair

ac wave

ac speedadoption

ss laptops

ss tablets