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Perspective on Broadband Access Evolution
Jean-Pierre Lartigue
Access Network Division
October 2004
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All rights reserved © 2004, Alcatel
The path towards user-centric broadband services
BroadbandServices
BroadbandServices
User-Centric Broadband
Services
User-Centric Broadband
Services
Multiple New Connectivity
Services
Multiple New Connectivity
Services
20051995 2000 2010
New Services
Adoption
Mobile voice, LAN, Internet, PC
DSL, WiFi, 3G, PC, TV
One service, any broadband, any device
BB growth is fueled by
> Service creation
• From high-speed
Internet to video,
VoIP… and more
> Geographical expansion
• 12% WW penetration
today
BB growth is fueled by
> Service creation
• From high-speed
Internet to video,
VoIP… and more
> Geographical expansion
• 12% WW penetration
today
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All rights reserved © 2004, Alcatel
Universal Broadband Access Challenges
Sustained growth & scale
An access to all services Service to everyone
Service-Aware AccessUniversal
BroadbandAccess
Wireline
WirelessSatellite
Mobile
• Reduce OPEX (network management)
• Mass market systems
• Access node as first gating point
• Distributed service intelligence
• IP & Ethernet, the convergence layer
• Large-scale video over DSL• VoIP in all access nodes• Combo voice/DSL card• Business services
• Deliver 100% coverage (remotes, FTTU, Wimax, Satelitte)
• Cost-effective reach (management, aggregation)
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Deliver 100% coverage
FTTArea
FTTCabinet/campus
FTTCurb/MDU
FTTHome/apartment
Back-bone
COExisting Copper
X-connect
NewLocation forElectronics
Buildings / MDUs
Homes
Curb / MDU basement
Apartments
Satellite
FTTx Wireless
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1- FTTx: Manage the coverage trade-off
Loop length & service constraints drive fiber & remotes
Technology
Korea,Japan,PAC
China
RoAPAC, Taiwan
MEA,India
LAM
North America
5% 20% 37% 74%
13% 53% 77% 97%
Western Europe
Central & East Europe
Km from COMbits
ADSL2plusVDSL2 ADSL READSL0,75 2 3 6
7% 14% 26% 62%
13% 54% 78% 98%
10% 40% 71% 95%
13% 51% 74% 96%
Over 25 10 to 15 5 to 8 0.5
18% 56% 78% 97%
13% 52% 75% 97%
Alternative deployment strategies
SServiceervice driven driven
Infrastructure driven &Service Leapfrog
Initial first investment
Time
ADSL FTTArea
FTTCab
FTTCab
Deep Fiber(FTTU, FTTN)
Challenges: Remotes, Fibre reach, powering, rights-of-way, civil work, operations
Challenges: Remotes, Fibre reach, powering, rights-of-way, civil work, operations
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1- FTTx: Key Parameters for deployment choices
4 Mbit/s6 Mbit/s6 6 Mbit/sMbit/s 2 Mbit/s
1 Mbit/s(when fed from
CO)
•• Number of subscribersNumber of subscribers
•• For central office or cabinetFor central office or cabinet
•• Service offering & uniformityService offering & uniformity
•• Type of uplink: copper/Type of uplink: copper/fiberfiber, capacity , capacity
•• Power & Existing civil workPower & Existing civil work
•• Environmental conditionsEnvironmental conditions
•• Size limitsSize limits
•• Stopgap solution or Evolutionary pathStopgap solution or Evolutionary path
CO
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1- FTTx: Capital Expenditure comparison
0,00
2,00
4,00
6,00
8,00
10,00
12,00
14,00
CA
PE
X
Fibre Costs 0,0 1,6 2,4 12,6CabinetInstallationcost
0,2 0,4 1,5 0,0
Hardwarecosts
0,8 1,0 1,8 0,4
CO FTTArea FTT Cab FTTH
Note : Hardware cost = Cabinet + Electronics + ASAM equipmentCabinet Installation cost = Installation+Commissioning+EasementsFiber Cost = Feeder fiber + distribution fiber
TOTAL COST 1 3x 6x 13x
1313100+100+14.5k (1 14.5k (1 per home)per home)
FTTH
661515--22223030FTT
Cab
3355--101055FTT
Area
1111--331 (in CO)1 (in CO)FTT
Exchange
Relative
cost
Bandwidth (Mbps)
# Nodes per CO area
Scenarios sizing Relative initial first cost /subscriber
Greenfield
xDSL remote for short loop /quality copper FTTU/PON for greenfield or bad loop qualityxDSL remote for short loop /quality copper
FTTU/PON for greenfield or bad loop quality
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2- Remote Areas: Access Solutions
RemoteDSLAM
Aggregation
CO DSLAM
(> 100 subs. / site)
2 Way SAT
x< 5 km
Wireless/WIMAX
xx
WLAN (SAT)
< 5 km
< 15 km(100>x>20 subs./site)
(< 20 subs./site) (20<x< 50 subs./site)
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1
10
30
50
1 5 30 50 100 1000
70
Average
Microvillage
LargeVillage
1 5 30 50 100 1000Backhauling distance (km)
# connected users/density
15
2- Remote Areas: 2006 End to End Cost Comparison
E2E 2way Satellite
DSLUrban
Ref.Price
x2 x4
DSL/WiMAX
(Satellite)
E2E WiMAXor DSL (WiMAX)
x4 DSL(µWave)
x4
x1,5 x2
x3x2,5...
DSL (Fibre-with light civil works)
Note: Access technology (Backhaul)
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Conclusion: anticipate 100% coverage & triple play
> High Density Rural Areas & Urban Areas (+50 users): FTTx• ADSL, the most competitive solution• xDSL remote for short loop /quality copper • FTTU/PON for greenfield or bad loop quality
> Medium Density Rural Area (20-50 users): WiMAX, WiMAX + DSL, FTTx• Reasonable investment costs (2-3 times that of urban ADSL) • Good SME & residential solution but limited interactive video services with WiMAX
> Very sparsely populated Areas (less 20 users): Satellites• Remote businesses as first targets • Interactive video obtained in combination with satellite broadcast TV
Thank you