PROPRIETARY AND CONFIDENTIAL This document · PDF fileProprietary and Confidential PROPRIETARY AND CONFIDENTIAL This document contains trade secrets or otherwise confidential information

Proprietary and Confidential

PROPRIETARY AND CONFIDENTIAL

This document contains trade secrets or otherwise confidential information owned by Calix, Inc. Access to and use of this information is strictly limited and controlled by

Calix. This document and the information contained herein may not be used, disclosed, or reproduced, in whole or in part, without the prior written authorization of Calix.

The information contained in this presentation is not a commitment, promise, or legal obligation to deliver any material, code, or functionality.

The development, release, and timing of any features or functionality described for our products remain at our sole discretion.

1

Proprietary and Confidential 2

What is MoCA?

MoCA is an open industry standards consortium.

MoCA technology provides the bandwidth reliability for in-home backbones and multi-room content sharing.

Every house with coax becomes a connected home and the foundation for a better wireless experience.



The Pro’s and Con’s

Pro’s

It’s easy to install

Cheap and easy to find

Fast= Speeds up to 1.2Gig

Con’s

Interference issues with thing like compressors and lights

Not a good solution for IPTV applications.







5


Which do you want to hear first? Good news or bad news?

What’s in your technology toolbox?

Solutions, installation, and maintenance


MDU percentage of all sized units has doubled in last 5 years

Townhomes, garden style, mid-rise, and high-rises are reshaping U.S. cities

Millennials (largest demographic) are driving this trend

85% of buyers / renters consider broadband important

(Broadband Communities, May 2015)

On a constant and steady growth curve

Year 5+ Units (%)

2015 38%

2014 35%

2013 31.7%

2012 29.9%

2011 27.4%

2010 17.7%

2009 17.6%

7


Easy to learn where contractors are building

• Planning / zoning boards, Chamber of Commerce

• County Clerk: building permits

Service providers are educating developers on wiring specs (BICSI, etc.) driving more fiber

Growth in deploying fiber to / inside MDUs

Growing deployment of fiber

8


Offering site inspections to MDU owners to determine changes for improved broadband

Educating MDU managers on the value of a strong broadband offering

Incentivizing managers to market broadband

• Pay commission for new subscribers

• Sponsor open houses and HOA events

• Gift bags for new tenants

Working with MDU owners and managers

9


Only 66% of managers believe broadband is important – disconnected subscriber’s needs!

(Broadband Communities, May 2015)

Pulling fiber is costly and time consuming

• Difficult to access risers (insufficient conduit)

• Buildings vary – centralized vs. distributed closets

• Limited placement (physically, HOA rules, environmental)

Focusing on the existing copper

• Range of wiring standards – CAT3, CAT1 aka flat wire

Strong competitive presences of DOCSIS 3.0

Addressing your pain points

1

0


When fiber is not cost effective

VDSL2

vectored

G.fast Bonded

G.fast

Gigabit N/A N/A <=700ft

600Mbps N/A <=600ft <=1200ft

100Mbps <=1500 ft <=1800ft <=2250ft

Rate@500ft 160 Mbps 720 Mbps 1300 Mbps

Rate@1 kft (Type 1 MDUs) 150 Mbps 400 Mbps 700 Mbps

Rate@2 kft 85 Mbps 85 Mbps 150 Mbps

Wiring requirementsUses existing

twisted pair

Uses existing

twisted pair

and coax

Uses existing

twisted pairs

and coax

Standard availability “Now” “Now” “Now”

note: Approximate Rates are aggregate (downstream + upstream)1

1

MDU solutions

1

2


FTTB – Centralized ONTs FTTFlr – Distributed ONTs FTTH – ONTs at living unit

Fiber to buildingThe first way to deploy fiber in a small to

mid-size MDU is to place the ONTs in one

central location

Fiber to floorThe second method of deploying fiber

into an MDU is distributing ONTs by

placing them along a fiber riser on

different floors of the building and then

running horizontal copper to living

units

Fiber to living unitThe third method for deploying fiber into

an MDU is to run fiber to each unit,

where it is terminated at a SFU ONT

1

3


Small and medium MDUs can be served by ONTs in one central location

This approach is limited by the reach of Ethernet over CAT5, which is limited to 100 meters

VDSL2 is often used inside the building to overcome the limitations of CAT5 distances

FTTB – Centralized

ONTsInterior and Exterior

Mounting Options

1

4


The second method of deploying fiber into an MDU is placing MDU ONTs on multiple floors in each building

Typically used in larger MDUs, that exceed the 100 meter CAT5 Ethernet distance limitation

Multiple locations need to be provided, along with power sources that can be charged to the operator or building owner

FTTFloor – Distributed ONTsWall and Rack

Mount Options

1

5


The third method for deploying fiber into an MDU is to run fiber to each unit, where it is terminated at an SFU ONT

ONTs are powered by the subscriber

An aesthetically pleasing and cost effective system for handling long fiber runs is required

FTTH – ONTs/RSGs in

MDU living unit

1

6







1

7


1

2

3

The MDU Wi-Fi challenge

Planning for success

Tools to maintain the experience

Strategic initiative: Deliver the gigabit experience to MDUs

1

8

The MDU Wi-Fi challenge

1

9


Corporate IT objective

Maximize coverage

Minimize cost of deployment

Optimize throughput

Characteristics of an enterprise

One closed wireless system

Multiple wireless access points (APs) serving everyone

“Rogue APs” are removed

One building example

2

0


Service provider objectives

Maximum coverage per living unit

Minimize interference to neighbors

Optimize for user experience

Characteristics of an MDU

One closed wireless system per living unit

Multiple living units in close proximity

Neighboring access points (APs) are a fact of life

One floor of a multi-dwelling unit building

2

1

Planning for success

2

2


Channel 36

Coverage Zone

-67 dBm

Common Wi-Fi challenge

Adjacent APs use the same channel

An AP must yield the channel if it hears any transmission

These signals propagate far!

Interference

Zone: -82 dBm

2

3


Design goals

One AP per living unit (most cases)

Minimize interference to neighboring APs

• Remember, the whole building is your “system” to optimize

Avoid interference from neighbors

• Even APs you cannot control

Techniques and technology

Minimize power levels

Use more channels

• Use 5 GHz aggressively

• Use DFS band when possible

• Reduce channel widths

Directional signals – work smarter, not harder

• Beamforming, power control, MU-MIMO

2

4


Apartment complex deployment

163 living units – three buildings, three floors

GigaCenter in each unit for voice and data

Concerns about interference with default settings

Case study: Apartment complex

2

5


Predictive design

Use software tools to model structure, APs, and attenuation

Produce maps of predicted RSSI, SNR, PHY rates

Generate optimized channel plans (channel and power) in 3D

2

6


The figure above shows the predictive signal strength throughout the floor.

In this example the signal is predicted to be well above -67dBm throughout.

Result: The power level is sufficient at all points to sustain connectivity.

2

7


Deploy APs as specified in predictive design

Walk site with data capture tools to validate prediction

AIterate design if necessary (adjust power, channels, etc.)

Validation survey

2

8

G.fast

2

9


Calix is key player in the G.fastindustry

Calix is a regular contributor in WT-301 standard

Calix is the editor of the G.fastPlugfest Interoperability Test Plan

G.fast standard status

G.fast standard was ratified by the ITU December 5, 2014

G.fast Interoperability Plugfestcompleted June 5, 2015

G.fast certification through BBF IOL Oct– Q1 2016

• Calix products will be included in the IOL Certification Lab

Deployments planned for 2016

• Field trials underway

3

0


TODAY!

3

1

Calix – the only vendor to demonstrate this


FTTB/FTTdp – Deep fiber, short loop copper applications

Reduce CAPEX and installation complexity with line power

Optional multi-pair bonded copper FTTN -> FTTdp for backhaul

Reverse power for FTTdp locations

Forward

Power

FTTN FTTB

FTTd

p

Reverse Power

Local

Power

Extending fiber deep into the network – FTTB/FTTdp

3

2


Fiber to the distribution point

*Initial Release GPON only

3

3

Single-visit installation and activation

1 GPON/GE auto sensing uplink*

16 subscriber ports

Technician friendly access

Tool-less pedestal installation

Pedestal, pole, manhole, strand

Sealed 6-point environmentally controlled

Hinge mounted top cover for field access

Standard 5/32 pin-in-hex captive fasteners

Hardened enclosure – IP-67, GR-950

Power

Line, local AC power

Reverse power (future)


801F / FB GigaPoint – 1Q 2016

Single and bonded pair options

Single LAN Interface

External battery options

Table top / wall mount

844F GigaCenter – 2Q 2016

Single or bonded option

4 Port LAN

2 POTS ports

Carrier Class Wi-Fi (802.11ac/4x4 MIMO)

844E

801F, 801FB or

3rd Party Modem

844F

E3-16F or

E5-16F

+

3

4



This document contains trade secrets or otherwise confidential information owned by Calix, Inc. Access to and use of this information is strictly limited and controlled by Calix. This document and the information contained herein

may not be used, disclosed, or reproduced, in whole or in part, without the prior written authorization of Calix.



3

5



Single-visit install and activation

Technician friendly

Sealed and environmentally controlled

Line, AC or reverse (future) power


Co

exis

ten

ce

Ele

me

nt

(CE

)

NGPON2 or XGS-PON

GPON

GPON

XGS-PON or

NGPON2

Business solutions

3

9

40 © Calix – Proprietary and Confidential

The information contained in this presentation is not a commitment, promise, or legal obligation

to deliver any material, code, or functionality. The development, release, and timing of any

features or functionality described for our products remain at our sole discretion.

How to Optimize Wireless Broadband

at Home - Session 1

Impact 2015

November 4th 2015

Ben Chan

41 © Calix – Proprietary and Confidential41

Agenda

• Market Trends

• Wi-Fi Environments

• How To Optimize Wi-Fi

• Open Q&A


Wi-Fi by the Numbers

Source: ABI Research Jan. 2015

Worldwide

Billion devices sold worldwide

Million new devices every day

Billion devices in use today

10

6.5

4.6


The Drivers for Faster Broadband

More

Devices

More

Videos

More

Apps


Internet Traffic Carried over Wi-Fi

Continues to Increase

63% of Internet traffic over Wi-Fi by 2019

EB

per

mo

nth

* 1 EB=1 Billion Gigabytes or 36,000 years of HD video


Your Customers

7.2 Wi-Fi connected devices in average US home

60% of millennials

use subscription video

(Netflix, Hulu, etc.)

72% of consumers

want high speed Internet

in every room


The Problem.

Challenges with Multiple

Devices

Existing 802.11n

Wi-Fi

Contention for Wi-Fi access Communicates with one device at a

time

Contention for bandwidth Few channels for Internet traffic, at

low speeds

Multiple locations near and far from

Wi-Fi access point

Can’t reach all locations, signal

weakens

Multiple technologies Mixed devices degrade overall

performance

Best effort connectivity Unpredictable behavior

of consumers have issues with

their Wi-Fi service 63%


Wi-Fi Retail Marketing MathMaximum PHY rate and max data rate

*with the same capability client

Standard PHY rate per

stream

(Mbps)

Data rate per

stream

(Mbps)

MIMO

Stream

802.11ac (80MHz) 433 260 1 to 8

802.11n (40MHz) 150 75 1 to 4

802.11n (20MHz) 72 36 1 to 4

802.11a/g 54 27 --

Example: 3x3 802.11ac with 80 MHz

3 x 433 Mbps = 1300 Mbps

Maximum data rate is about 60% of PHY rate

Max Data Rate = 1300 Mbps x 0.6 = 780 Mbps


Multipath Environment


U.S. 2.4 and 5 GHz Spectrum5 GHz has 7x more bandwidth than 2.4GHz, up to 26 channels with DFS

2.4 GHz Band

5 GHz Band

Weather Radar


Unrestricted Access to Speed at 5GHz

More lanes, higher speeds, less congested

1000

2.4GHz 802.11n 5GHz 802.11ac with DFS

180


How To Optimize Wireless In Home?

• Location, Location, and Location

• High, central, unobstructed “view” (not in the basement..)

• Minimize obstacles: Keep AP away from metal and wall.

Don’t put AP in metal enclosure!

• Avoid Interference

• With neighbors’ APs and select the right channel

• In home devices (cordless phone, blue tooth devices,

microwave ovens, baby monitors,..)

• Check signal strength (Transmit and Receive)

• Upgrade device more than 5 years old!

• Leverage dual radio AP to create more capacity

• Move bandwidth intense devices to 5GHz

• Replace or turn off unused old devices


The Ideal LocationHigh, Central, Unobstructed “view”

Signal strength

weaken as a

result of range


The Effect Of Building Materials


The Impact of AP Location


Avoid These Locations


The Solution

Features Benefits

Ease of

Installation

• Fast service roll-out; time-to-revenue

• Reduce operation expense

Carrier Class

Wi-Fi

• Advanced MIMO technologies for better coverage

• Significant higher speed and multi-user

Advanced

Analytics

• Quick, intuitive remote diagnosis tools

• Actionable recommendation engine

Cloud-based

Management

• Superior subscriber experience

• Scalable to grow with business needs


The Dual Band Concurrent Radios

Leveraging the 5GHz capacity for higher speed and coverage

2x2:2 802.11n 2.4GHz Wi-Fi:

Up to 180Mbps maximum capacity.

Backward compatible to legacy devices

with 11b, 11g, and 11n radios

4x4:4 802.11ac 5GHz Wi-Fi:

Up to 1Gbps maximum capacity. Designed

for high capacity 11ac clients. Capable to

deliver video over Wi-Fi, super fast

download and streaming to multiple

devices simultaneously


…and the remote

diagnostic/analytic tools


Why are Wi-Fi analytics important?

Carrier Grade Wi-Fi is not ‘best effort’

Expectations are the same as for wired service

IPTV and VoIP Services need higher Quality of

Experience than casual web browsing and email

Wi-Fi is an important element of enhanced customer

experience but often the largest source of consumer

complaints

Wi-Fi analytics provides the tools needed to prevent,

troubleshoot, and resolve problems remotely


A Closer Look at Common Wi-Fi Issues

Airtime congestion

Exceed usage for the capacity of the channelLOADING…

Poor signal strength

Client is located too far away from router or behind

a barrier that degrades service

Interference

Competing wireless signals that overlap or adjacent

channel interference

Interoperability issues

Standard complexity and many product variations

generate interoperability issues


Air Time UtilizationDetermine the Health of the Channel

The ‘air time’ of the operational

channel is divided into a ‘pie chart’

The chart is divided into free time

(unused), used (by the AP or

associated clients) or interference (by

other Wi-Fi and/or non-Wi-Fi signals)

Air time is valuable. High data rate

taking up less airtime and make it

available for all other devices


Wi-Fi Site ScanA Powerful Remote Diagnostic Tool

Busyness: Utilization of the channel AP SSID and power level


Device ParametersIdentify the Potential Issues

Radio Type of Client Device (802.11/a/b/g/n/ac)

Determine the max data rate a client can achieve

Downstream (DS) and Upstream (US) physical rates

As a rule of thumb, this is twice the TCP data throughput due to overhead

Received Signal Strength Indicator (RSSI) per Device

Strength of the signal is measured by the receiver in units of signal power (dBm)


Summary

Optimize Wi-Fi Broadband is more than hardware

Remote analytic tools are needed for better Wi-Fi experience

1 A set of metrics to benchmark Wi-Fi

performance

2 Include measurements per radio and

per client base

3 Recommendation engine provides

actionable advice


Q&A


Maximum data rate is 40%-60% of PHY rate due to protocol overhead

5 GHz (11ac/80MHz)

Client

AP

Legacy 11a

client

Max data rate

1x1 11ac (smart

phone/laptop)

Max data rate

2x2 11ac (iPhone

6S/laptop)

Max data rate

3x3 11ac

(STB/Ext.)

Max data rate

4x4 11ac (Carrier

STB/Ext.)

Max data rate

Typical 4x4 54M 433M 867M 1300M 1733M

Typical 3x3 54M 433M 867M 1300M 1300M

Typical 2x2 54M 433M 867M 867M 867M

2.4 GHz (11n/20MHz)

Client

AP

Legacy 11g

client

Max data rate

1x1 11n (iPhone

4/laptop)

Max data rate

2x2 11n (iPhone

6S/laptop)

Max data rate

3x3 11n

(STB/Ext.)

Max data rate

4x4 11n (Carrier

STB/Ext.)

Max data rate

Typical 4x4 54M 72M 144M 216M 289M

Typical 3x3 54M 72M 144M 216M 216M

Typical 2x2 54M 72M 144M 144M 144M

5 GHz (11n/40MHz)

Client

AP

Legacy 11a

client

Max data rate

1x1 11n (iPhone

4/laptop)

Max data rate

2x2 11n (iPhone

6S/laptop)

Max data rate

3x3 11n

(STB/Ext.)

Max data rate

4x4 11n (Carrier

STB/Ext.)

Max data rate

Typical 4x4 54M 150M 300M 450M 600M

Typical 3x3 54M 150M 300M 450M 450M

Typical 2x2 54M 150M 300M 300M 300M

2.4GHz

11n

5GHz

11n

5GHz

11ac

Maximum rate is limited by the lowest capability of AP and Client


Set appropriate expectations

Standards and

maximum data rate

Smartphones Tablets Laptops Other devices

11g/a @2.4GHz/5GHz

54Mbps

iPhone 3G -- Discontinued in laptop in 2013 Apple TV – Gen 1

1x1 11n @2.4GHz only

72Mbps

iPhone 4/4S -- Between 2009-2016 Apple TV - Gen 2, Amazon

Fire TV, Smart TVs prior to

2013

1x1 11n @

2.4GHz/5GHz

150Mbps

iPhone 5/5S iPad 2 Between 2009-2014

Transition to 11n/11ac in 2013

Roku 1/2/3

Xbox 360, PS-3, Wii-U

Prior 2013 smart TVs

1x1 11ac @5GHz

433Mbps

Google Nexus 6,

Galaxy S4,

Samsung Note,

HTC One

Amazon Fire, Samsung

Galaxy Mega 6.3, Note

III, SM-P600, Xperia

Z…

Most of 2015 or later main

stream laptops/notebooks

such as (Dell, HP,

Chromebooks, and others)

Most of 2015 or later 4K TVs

(VIZIO, Samsung, Sony…)

Apple TV – Gen 3&4, Roku 4

Netgear AC600 USB

2x2 11ac @5GHz

867Mbps

iPhone 6/6S,

Galaxy S6/S7

iPad Air 2, iPad Pro,

Surface Pro 4

Macbook Air, Dell E7450, HP

TPC-Q013

Xbox one, USB: Netgear

AC1200, Linksys WUSB6300

4x4 11ac @5GHz

1733Mbps

-- -- -- Amino Kamai 6 STB, Arris VIP

5602


MIMO TechnologyAn example of 4x4:4 radio system

• Multiplexing Gain – Transmit multiple streams independently

at the same time

• Beamforming Gain – Gain achieved by tuning antenna to the

direction of arrival of the desired signal

Tx1

Tx2

Tx3

Tx4

Rx1

Rx2

Rx3

Rx4

D

S

P

Multi-Path

Channel

Transmit Data Receive Data


Why is MU-MIMO Important?

MU-MIMO (Multi-User Multiple Input Multiple Output)

is using advanced beamforming and MIMO technologies to enable

simultaneous AP-to-client transmission. It’s most effective with 4x4

radio that digitally steers multiple independent signals to each client

without interfere each other. It increases network throughput for more

devices and higher speed at the same time

Many Wi-Fi clients are still 1x1 or 2x2 and will remain that

way, with these clients, the Wi-Fi channel is being used

inefficiently when connected to a 4x4 AP

This can cause the air time to be consumed by inefficient clients

MU-MIMO allows 1x1 or 2x2 clients to use the channel

efficiently

Leaving more capacity for all clients

Proprietary and Confidential7

1

Maximum data rate is 40%-60% of PHY rate due to protocol overhead

5 GHz (11ac/80MHz)

Client

AP

Legacy 11a

client

Max data rate

1x1 11ac (smart

phone/laptop)

Max data rate

2x2 11ac (iPhone

6S/laptop)

Max data rate

3x3 11ac

(STB/Ext.)

Max data rate

4x4 11ac (Carrier

STB/Ext.)

Max data rate

Typical 4x4 54M 433M 867M 1300M 1733M

Typical 3x3 54M 433M 867M 1300M 1300M

Typical 2x2 54M 433M 867M 867M 867M

2.4 GHz (11n/20MHz)

Client

AP

Legacy 11g

client

Max data rate

1x1 11n (iPhone

4/laptop)

Max data rate

2x2 11n (iPhone

6S/laptop)

Max data rate

3x3 11n

(STB/Ext.)

Max data rate

4x4 11n (Carrier

STB/Ext.)

Max data rate

Typical 4x4 54M 72M 144M 216M 289M

Typical 3x3 54M 72M 144M 216M 216M

Typical 2x2 54M 72M 144M 144M 144M

5 GHz (11n/40MHz)

Client

AP

Legacy 11a

client

Max data rate

1x1 11n (iPhone

4/laptop)

Max data rate

2x2 11n (iPhone

6S/laptop)

Max data rate

3x3 11n

(STB/Ext.)

Max data rate

4x4 11n (Carrier

STB/Ext.)

Max data rate

Typical 4x4 54M 150M 300M 450M 600M

Typical 3x3 54M 150M 300M 450M 450M

Typical 2x2 54M 150M 300M 300M 300M

2.4GHz

11n

5GHz

11n

5GHz

11ac

Maximum rate is limited by the lowest capability of AP and Client


2

Set appropriate expectations

Standards and

maximum data rate

Smartphones Tablets Laptops Other devices

11g/a @2.4GHz/5GHz

54Mbps

iPhone 3G -- Discontinued in laptop in 2013 Apple TV – Gen 1

1x1 11n @2.4GHz only

72Mbps

iPhone 4/4S -- Between 2009-2016 Apple TV - Gen 2, Amazon

Fire TV, Smart TVs prior to

2013

1x1 11n @

2.4GHz/5GHz

150Mbps

iPhone 5/5S iPad 2 Between 2009-2014

Transition to 11n/11ac in 2013

Roku 1/2/3

Xbox 360, PS-3, Wii-U

Prior 2013 smart TVs

1x1 11ac @5GHz

433Mbps

Google Nexus 6,

Galaxy S4,

Samsung Note,

HTC One

Amazon Fire, Samsung

Galaxy Mega 6.3, Note

III, SM-P600, Xperia

Z…

Most of 2015 or later main

stream laptops/notebooks

such as (Dell, HP,

Chromebooks, and others)

Most of 2015 or later 4K TVs

(VIZIO, Samsung, Sony…)

Apple TV – Gen 3&4, Roku 4

Netgear AC600 USB

2x2 11ac @5GHz

867Mbps

iPhone 6/6S,

Galaxy S6/S7

iPad Air 2, iPad Pro,

Surface Pro 4

Macbook Air, Dell E7450, HP

TPC-Q013

Xbox one, USB: Netgear

AC1200, Linksys WUSB6300

4x4 11ac @5GHz

1733Mbps

-- -- -- Amino Kamai 6 STB, Arris VIP

5602

Optimizing Wi-Fi

73


Leveraging the 5 GHz capacity for higher speed and coverage

802.11n 2.4 GHz Wi-Fi:

Up to 300Mbps maximum capacity; backward compatible to legacy devices with 11b, 11g, and 11n radios

802.11ac 5 GHz Carrier Class Wi-Fi:

Up to 1.7Gbps maximum capacity; designed for high capacity 11ac clients; capable to deliver video over Wi-Fi, super fast download, and streaming to multiple devices simultaneously

7

4


Retail markets Wi-Fi standard capability and self support

Number of antennas Combined PHY rate Self support


802.11ac is just the starting point

Carrier Class Wi-Fi Feature Subscriber / Service Provider Impact

5 GHz with 23 channels with DFS

frequencies

7X the capacity of 2.4 GHz; HD IPTV over Wi-Fi ;

minimal interference

80 MHz channel width Significantly higher speeds

Dynamic frequency hopping Smart channel selection when interference encountered

4 x 4 Multi-User MIMO Significantly improves range and speeds throughout the

home

Dynamic beamforming Ability to reach remote devices at the edge of the house;

support of 8 HD streams throughout the home

QoS Prioritization of service by SSID for higher reliability;

IPTV supported at launch

Interoperability Complete testing with set top ecosystem

7

6


Multi-User MIMO BeamformingStability and Performance for Clients

Stronger signal for Device 1

Stronger signal for Device 2

Nulls that minimize

adjacent interference

Device 1

Device 2


Airtime congestion Exceeding usage for the capacity of the channel

LOADING…

Poor signal strength Client too far away from router or behind a barrier

that degrades service

Interference Competing wireless signals that overlap or adjacent

channel interference – especially in MDUs

Interoperability issues Standard complexity and many product variations

generate interoperability issues

78


DFS re-entry and Smart Channel HoppingMore channels and less interference

Radar Detection

Interference Detection

Weather Radar


(0.003%)

(0.025%)

(0.2%)

(1.5%)(12%)




Use Case 1: Wireless Speaker

Symptom: Customer complains about

very poor throughput on the 2.4 GHz

radio.

Air Time Pie Chart shows high

percentage of air time consumed by

interference.

Site Scan shows a relatively close Wi-Fi

device. No SSID is revealed, but a MAC

address is.

Determined that an ad-hoc network

between subwoofer and sound bar was

present. Attempted to adjust “channels”

on the subwoofer to no avail.

Solution: Small movement of AP from

wireless speaker fixed problem


Due to Air Time Hog

Use Case 2: Degraded Wi-Fi

Symptom: Streaming movie in

home theater with “buffering…”

Occurred when playing HD movie on the

iPad

Low signal causes 80% air time utilization

and only 5% free air time

Solution: Move the iPad to 2.4 GHz

or closer to AP

Tablets with antenna polarization

misaligned to AP will seem ‘far’.

Solution: APs should have MIMO with

polarization diversity or rotate tablet.


Device ParametersIdentify the Potential Issues

Radio Type of Client Device (802.11/a/b/g/n/ac)

Determine the max data rate a client can achieve

Downstream (DS) and Upstream (US) physical rates

As a rule of thumb, this is twice the TCP data throughput due to overhead

Received Signal Strength Indicator (RSSI) per Device

Strength of the signal is measured by the receiver in units of signal power


Location, location, location! Optimize range/robustness/speed

• High, central, unobstructed “view” (not in the basement, attic, at the corner, or on the floor)

• Minimize obstacles: Keep AP away from metal and wall; don’t put AP in or next to a metal enclosure

Check signal strength – set appropriate expectations for range/robustness/speed

• To ensure no extreme barrier blocking the signal


Avoid interference – optimize rate and robustness

• With neighbors’ APs – select the right channel, especially for 2.4 GHz

• Move AP away from cordless phones, blue tooth devices, microwave ovens, baby monitors

Leverage dual radio AP – create capacity for more devices

• Move bandwidth intense devices closer to AP or to 5GHz band

Eliminate interoperability issues and airtime hogs –better Wi-Fi experience for all users

• Upgrade any devices more than 5 years old!


Airtime congestion:

Too much traffic for the capacity of the channel

Poor signal strength:

The client is located either too far away from the GigaCenter or behind a barrier that attenuates the signal

Interference:

Competing wireless signals that overlap or adjacent channel interference; sources may be other Wi-Fi devices or non-Wi-Fi devices, such as microwave ovens or cordless phones

Interoperability issues:

Trouble free Wi-Fi requires more than just good radios; GigaCenter and client interoperability issues will arise

8

8


9

Remotely or on-site

63% of consumers have

issues with their Wi-Fi

service Busyness: Utilization of the channel


CSR module – wireless troubleshooting

9

0


Radio interference high?

• Recommend to switch channel

• Recommend to set channel mode to Auto

• Recommend select DFS channel

Weak signal strength?

• Look for specific device that has weak signal strength continuously

• Recommend to move device closer to GigaCenter or move it away from wall

Tx (transmit) and Rx (receive) efficiency low?

• Low signal strength could cause Tx/Rx efficiency to be low

• If Tx/Rx efficiency are low with good signal strength, interference could be issue

• Recommend to switch channel

• Recommend to set channel mode to Auto

• Recommend to upgrade older device

Based on real-time and historic data

Leveraging Wi-Fi analysis

9

1


Adjacent AP InterferenceSignal strength and device capability

Congestion, utilization, and analytics


GigaCentergathers data

1

Wi-Fi Advisor in the cloud performs analysis on the data2

Old devices

Throughput issues

Weak signal

101

Airtime Analysis

Free

Used

Interference

Site Scan

Shows recommendation and analysis to remote technician

High Radio Interference

• Turn on DFS channels if DFS is not enabled.

• Note: While not all clients can use DFS channels, DFS channels typically have the lowest interference of all Wi-Fi Channels.

• If you cannot turn on DFS, manually switch channels or set Channel Mode to Auto, and determine if performance improves.

3


Installation:

• Follow your best install practices

• Set subscriber expectations... end dead spots

• Identify dead spots with cloud or local tools

• Sell extra APs for remediation

Troubleshooting visit:

• Check network, applications usage, and device capability prior to visit

• Sell managed Wi-Fi or higher HSI tier as required

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1 Deploy strong CPE that is your point of presence with

better coverage and higher capacity.

2 Cloud based software for management, provisioning,

scalability, analytics, and remote tech support.

3 Intuitive app to empower subscribers to control, monitor, and

personalize user experience.

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Q&A








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Documents

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