Broadband Access
Evolution – FTTH
Wolfgang Fischer
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• TV – broadcast, video on demand
SDTV
HDTV
3D-HDTV
• 2nd Screen interactivity
• Video / image up-/ download (YouTube & Co.)
What kind of video?
• Video-related cloud services
• Video / image e-mail
• Video surveillance
• Gaming
• Remote health-care via High-Definition Telepresence, ...
• ...
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• “Video” is more than just TV
• Video related applications and services (“Visual Networking”) will
determine access bitrate requirements
• Need to support multiple video applications concurrently in a
household
• Content will become more and more “high definition”
• Majority of applications require symmetrical access bitrates
• Both sustainable bitrates for streaming video as well as high peak
bitrates for transfer of large (video) files are required
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High-end users’ connection speeds grow >50% YoY
Mass market lags high-end by 2...3 years
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Source: Usage of Broadband Study, Ventura
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BQS2010, Application Readiness
Ready for
Tomorrow
Korea
Japan
Latvia
Sweden
Bulgaria
Finland
Romania
Lithuania
Netherlands
Hong Kong
Germany
Portugal
Denmark
Iceland
52%
34%
3%
13%
5%
4%
2%
22%
3%
34%
< 1%
2%
8%
8%
Majority of these
Comfortably
countriesenjoying
already
Today’s
applications
have substantial
Switzerland
FTTH
household
United States
penetration
Czech Republic
Hungary
Belgium
France
Slovakia
Norway
Estonia
Luxembourg
Austria
Singapore
Poland
Slovenia
Russian Federation
United Kingdom
Greece
Ukraine
Canada
Meeting needs of
Today’s applications
Taiwan
Spain
Australia
Ireland
Malta
New Zealand
Italy
Turkey
Chile
Israel
Ghana
Thailand
Saudi Arabia
Cyprus
Brazil
Below Today’s
Application Threshold
United Arab Emirates
Qatar
China
Argentina
Bahrain
Mexico
Tunisia
Costa Rica
South Africa
Malaysia
Pakistan
India
Morocco
Colombia
Philippines
Indonesia
Jordan
Egypt
Vietnam
Sponsored by
Basic
Applications
Algeria
Peru
Nigeria
Kenya
Angola
Vertically
integrated
model
Dark fiber
model
Bitstream
open access
model
Multilayer open
access model
Services
& Content
Network
(Backbone & Access)
Physical Infrastructure
(Dark Fiber)
Requires open access to fibers
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Where do you
want this
installed
Madam?
Super Fast
Broadband
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IP/MPLS
Edge/core
Ethernet/ MPLS
Aggregation Network
Access Network
Shared Medium
PE-AGG Access
OLT
Splitter,
...
P2MP
STB
P2P
STB
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Technology
Ethernet
TDM-PON
(GPON, EPON,
DPON, XG-PON,
10GEPON)
Topology
P2P
Ethernet P2P PON P2P
P2MP
Active
Ethernet
PON P2MP
Dedicated medium
Shared medium
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Point-to-point
Point-to-multipoint
Bitrate potential
Virtually unlimited
Limited by characteristics
of aggregation point
Technology dependence
None
Limited to few classes of
access technologies
Technology upgrade
Per subscriber
Per aggregation point
Open access to fiber
Straightforward
Complex / impossible
Troubleshooting
Simple – OTDR
Complex – failure
correlation
Number of feeder fibers
One fiber per subscriber
One fiber per aggregation
point
Dimension of fiber
management
One port per subscriber
One port per aggregation
point
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Ethernet
PON
Scalability
100Mbit/s ... 10Gbit/s ...
2.5 ... 10Gbit/s
Bitrate sharing
Dedicated bitrate
Shared bitrate
Security
High through dedicated
medium
Requires encryption,
vulnerable to DoS attacks
Upstream traffic
management
Highly sophisticated
through switch matrix
Limited by capabilities of
MAC protocol
Interoperability OLT-CPE
Easy because of
ubiquitous technology
Still challenging
Per subscriber CO power
consumption
Well defined low value
Depends on take rate (<2W), independent of take from very high to low
rate
CPE power consumption
Low
CO real estate usage
1600 homes connected per Depends on take rate rack
from very high to very low
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≈1W higher than Ethernet
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EU Global Ranking - June 2010
25%
Ethernet FTTH Countries
20%
FTTH
15%
FTTB
10%
5%
0%
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Source: IDATE for FTTH Council Europe
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Understand your options for the deployment of fiber in various topologies
•
Which business models do you plan to implement today?
•
Which business models do you plan to implement in 20 years from now?
•
Are restrictions for the deployment of certain topologies based on
serious analysis of the existing infrastructure (e.g., ducts),
conservative assumptions,
or driven by considerations to enable / prevent certain business models?

If your access infrastructure needs to be flexible,
business model and technology agnostic,
then deploy point-to-point fiber
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Understand your options for the technologies to be used over the fiber
topology
•
Which peak bitrates will your customers require over the lifetime of the
technology (e.g., 5 years) which you deploy today?
•
Do you want to differentiate technologies between low-tier and high-tier
residentials, SMEs, enterprises?
•
Can you distinguish locations of these different types of customers?
•
Is a unified approach simpler and cheaper in the end?
•
Do you want to be on par with the most successful FTTH deployments in
Europe?

If your technology choice needs to be equally suited for all types of
customers, be highly scalable, mature, secure,
then deploy Ethernet
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• Video-related applications and services continue to drive
exponential access bitrate growth
• Applications increasingly require ultra-high-speed symmetrical
connectivity
• A new fiber plant is the most valuable asset. Make it as future-
proof as you can.
• Ethernet is the clear choice of virtually all major FTTH
deployments in Europe
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