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Wi-Fi Access Point Optimization
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Trends in Communications
• Wired wireless,
• Cellular Wi-Fi.
Wi-Fi has become the medium of choice. 2/3 of US consumers prefer Wi-Fi to Cellular. –
Deloitte
By 2017, 60% of Cellular traffic will be offloaded to Wi-Fi.
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Wi-Fi - Drivers
TV
•TV Everywhere content grew 246% last year.
Mobile
•70% of Smartphone Wi-Fi traffic is between 4pm-7am
81%
•81% of users have technology-related issues, •Lo
ading/buffering (24%) and crashing/freezing (23%).
VIDEO
70% of Consumer View over
80% of Consumer View over
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Internet of Things – Just Starting
Source: IDC
In 2020, there will be 6 Billion Mobile Phones, but 25+ Billion Connected Devices
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The Radio Spectrum in the U.S.
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North America Tier #1 MSO Stats
57% of Speed Fixes are Wi-Fi related
58% of Intermittent Internet Fixes are
Wi-Fi related
59% of Intermittent Outage Fixes are
Wi-Fi related
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The Evolution of 802.11 Standards
More Antennas
Wider Channels
More Spatial Streams
More Efficient Modulation
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Data Rate v Distance
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The Biggest User Experience Issues in Wi-Fi
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Primary Sources of Wireless Interference
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RF Interference by Industry
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Physical Barriers to Wi-FiMaterial Attenuation (dB)
2.4 GHz 5 GHz
Interior Drywall 3-4 3-5
Cubicle Wall 2-5 4-9
Wood Door (hollow-solid) 3-4 6-7
Brick / Concrete Wall 6-18 10-30
Glass / Window (not tinted) 2-3 6-8
Double-Pane Coated Glass 13 20
Bullet-Proof Glass 10 20
Steel / Fire Exit Door 13-19 25-32
Human Body 3 6
Free Space .24 / ft. .5 / ft.
Tree (est.) .15 / ft. .3 / ft. Source: Ubee
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Its not all about Signal Strength
Signal Strength is an unreliable measure
Its about Airtime Contention
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Inputs into Wi-Fi Quality Of Experience
Congestion InterferenceSignal
Strength
Different Types of Devices
Number of Devices
Applications
More Real
World
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Don’t Use Range Extenders
Use Multiple Access Points to fill the coverage Gaps
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Installation Best Practices
Planning Site SurveyAccess Point
Placement
Channel Strategy
Birth Certificate
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Walkthrough with the Customer• How Much and what type of media do they consume.• What type of devices and where do they consume the media.• What is the Size of the Residence.• What is the Layout of the Residence.• Is it Possible to Install Access Point in multiple locations.
Planning
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Look at the Numbers
Single Client Testing is not Realistic
Wi-Fi requires multiple clients concurrently tested
Site Survey
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No Two Devices are the Same
802.11n client 802.11ac User Experience
iPhone 5 is not the same radio as iPhone 6
Site Survey
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Speak the Customers Language
Average Number of Apps / Smartphone
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Will HD-Video Streaming work in the Living room
Will Gaming work in the Break room
Site Survey
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Don’t leave it to chance
Complex & Diverse Wi-Fi Environment
Access Point
Placement
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Wi-Fi Channel Selection
Legacy Approach Intelligent Channel Selection
Channel Strategy
Number of AP’s on the channel
Lower RSSI of other networks
Scan All Channels Over Time
Understand the Traffic Mix
Understand each channel Congestion
Understand interference on each channel
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Birth Certificate Saved & Uploaded
Birth Certificate
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In Summary - Stress It then Measure It.
Simultaneous Stress Testing
User Experience
# Devices Location
Traffic
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Greenlee Communications AirScout
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Greenlee Communications AirScout
Optimize the In-Premise Configuration – Channel & AP Location
Identify Wi-Fi dead zones & Slow Zones within the premise
Assess the User Experience over Wi-Fi before finishing an install.
Identify Up-Sell Opportunities to fix coverage gaps and bad user experience
Wi-Fi Access Point Optimization
June 24th 10:30-12pm