FTTH Conference 2011 Workshop ALPHA Architectures Bart Lannoo IBBT Belgium
Upcoming SlideShare
Loading in...5
×
 

Like this? Share it with your network

Share

FTTH Conference 2011 Workshop ALPHA Architectures Bart Lannoo IBBT Belgium

on

  • 701 views

FTTH Conference 2011 Workshop ALPHA Architectures Bart Lannoo IBBT Belgium

FTTH Conference 2011 Workshop ALPHA Architectures Bart Lannoo IBBT Belgium

Statistics

Views

Total Views
701
Views on SlideShare
701
Embed Views
0

Actions

Likes
0
Downloads
14
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Adobe PDF

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

FTTH Conference 2011 Workshop ALPHA Architectures Bart Lannoo IBBT Belgium Presentation Transcript

  • 1. ALPHA – Architectures for fLexible Photonic Home and Access networksFTTH Conference, FP7 workshopMilan, Italy, Feb. 8th, 2011 ALPHA reference model for techno-economics in access networks Bart Lannoo – IBBT, Belgium Kun Wang, Claus Popp Larsen, Anders Gavler, Mikhail Popov – Acreo, Sweden Dominique Chiaroni - Alcatel-Lucent Bell Labs, France
  • 2. OutlineTechno-economic reference model  Comparative model for different technologies  Cost elements  Equipment  Cable and fibre dimensioningCase: CAPEX evaluation for next-generation optical access (NGOA), focused on hybrid WDM/TDM PON  Benchmarked with 10G GPON and 1G AON  Different hybrid WDM/TDM PON options, for offering flexibility 16/02/2011 - 2
  • 3. FTTx comparative model Equipment, topology, architecture CPE Remote node CO CPE Remote node CO X Fibre branching X Splitter X X X X X X X X AON homerun TDM PON X Switch X AWG X X X X X X X X X AON active star WDM PON Ethernet equipment TDM equipment Optical equipment16/02/2011 - 3
  • 4. Cost comparison 10G GPON vs. 1G AON Assumptions Sustainable bandwidth 312Mbps PON 1 fibre solution, AON 2 fibre Peak bandwidth 1Gb/s AON +10% costs @ civil works, Number of subscribers ducts, fibre installation (closer to end user, the less add-on cost) End to End services Remote node costs: No OPEX Costs composition TDM PON < WDM PON < AON Green field ONU: 10G GPON > 1G AON Network Element InfrastructureOLT Remote ONU CPE Feeder Distribution & last mile node Installation & Splice Fibre Ducts Civil work 16/02/2011 - 4
  • 5. Network elementsIP / MPLS core network CO RN Home/ Access Distributed network 10Gb ONU 1Gb CPE 10Gbps OLT Residential Aggregation 10Gbps switch Splitter 1:32 10Gb ONU 1Gb CPE Residential 1Gb SFP 1Gb CPE Multi Service Residential Edge Node 1Gb CPE 1Gb SFP Residential 16/02/2011 - 5
  • 6. Dimensioning: Urban 64 user 56,6m inp inp 2 RN 1 inp inp RN Shared by 512 users 1024 CO Shared by 256 users Shared by 128users  5000 users/km2 Shared by 64 users  2km feeder MDU (16 apt)  RN: 1024 users16/02/2011 - 6
  • 7. Dimensioning: Rural • 300 users / km2 3 • 10km feeder 2 64 user block Shared by 512 users Shared by 256 users 1 Shared by 128 users Shared by 64 users Shared by 32 users Shared by 16 users 1 household Remote Node 102416/02/2011 - 7
  • 8. OutlineTechno-economic reference model  Comparative model for different technologies  Cost elements  Equipment  Cable and fibre dimensioningCase: CAPEX evaluation for next-generation optical access (NGOA), focused on hybrid WDM/TDM PON  Benchmarked with 10G GPON and 1G AON  Different hybrid WDM/TDM PON options, for offering flexibility 16/02/2011 - 8
  • 9. CAPEX evaluation for NGOA systems Benchmarked with 10G GPON (ref. 1) and 1G AON (ref. 2) AON, 10G GPON, WDM 10G GPON Urban vs. rural Cost breakdown for considered FTTH technologies Cost breakdown for considered FTTH technologies 312 Mbps per customer, urban areas (5000 inh./km 2) 312 Mbps per customer, rural areas (300 inh./km 2) 4000 4000 Ref 1 NG PON with Ref 2 3500 3500Cost per subscriber (€) Cost per subscriber (€) 3000 3000 WDM dimension NG PON with 2500 2500 WDM dimension 2000 Ref 1 Ref 2 2000 1500 1500 1000 1000 500 500 0 0 10G GPON WDM 10G GPON WDM 10G GPON 1G AON 10G GPON WDM 10G GPON WDM 10G GPON 1G AON (8 wavelengths) with mux (8 wavelengths) with mux (8 wavelengths) (8 wavelengths) Cat. 3: ONU Cat. 3: CO Keep ONU costscabinets) control 3: ONU Cat. 3: Flexible Node Cat. 2 (cables, fibres, under Cat. Cat. 3: CO Cat. 3: Flexible Node Cat. 2 (cables, fibres, cabinets) Cat. 1: Feeder Cat. 1: In-building • Higher TDMA rates seem infeasible Cat. 1: Distribution Cat. 1: Feeder Cat. 1: Last mile Cat. 1: Distribution from a cost perspective • Other multiple access techniques 16/02/2011 - 9 come into the picture, like OFDMA
  • 10. Hybrid WDM/TDM PON offers additional flexibility Turn off OLT 1. Better bandwidth utilization, leading to energy savings16/02/2011 - 10
  • 11. Hybrid WDM/TDM PON offers additional flexibility OLT 2. Easier network upgrades and extensions16/02/2011 - 11
  • 12. Hybrid WDM/TDM PON offers additional flexibility 1G 1G 1G  10G 1G 10G OLT 3. Easier network evolution and migration16/02/2011 - 12
  • 13. Hybrid WDM/TDM PON technologies for NG PON systems ONU WBS-PON: Wavelenght Broadcast&Select PON  Only power splitters OLT + : Simple / high flexibility – : High power loss / Low security WS-PON: Wavelength Split PON ONU  Power splitters and wavelength splitters (e.g. AWG) +: Low power loss / High security / Little complex – : No flexibility OLT WR-PON: Wavelength Routed PON ONU  Power splitters and optical switches (e.g. SOA, MEMS) +: High flexibility / High security – : High power loss / Complex OLT WSS-PON: Wavelength Selective Switched PON  Power splitters and Wavelength Selective Switches (WSS) ONU +: Low power loss / Partial flexible / High security – : Complex OLT 16/02/2011 - 13
  • 14. Hybrid WDM/TDM PON technologies Cost breakdown (urban area) – cost/subscriber Cost breakdown for WDM/TDM PONs (312 Mbps, 8 wavelengths), for urban areas 4000 Cost per subscriber (€) 3500 Cost doubles for fully 3000 flexible architecture 2500 Limited influence on the cost  Good perspectives for flexibility 2000 1500 1000 500 0 WBS-PON WS-PON WR-PON WSS-PON Fully Fully static flexible Cat. 3: ONU Cat. 3: Flexible Node Cat. 3: CO Cat. 2 (cables, fibres, cabinets) Cat. 1: Feeder Cat. 1: Distribution Cat. 1: In-building16/02/2011 - 14
  • 15. Hybrid WDM/TDM PON technologies Cost breakdown (rural area) – cost/subscriber Cost breakdown for WDM/TDM PONs (312 Mbps, 8 wavelengths), for rural areas 4000 Cost per subscriber (€) 3500 3000 2500 2000 1500 1000 500 0 WBS-PON WS-PON WR-PON WSS-PON Fully Fully static flexible Cat. 3: ONU Cat. 3: Flexible Node Cat. 3: CO Cat. 2 (cables, fibres, cabinets) Cat. 1: Feeder Cat. 1: Distribution Cat. 1: Last mile16/02/2011 - 15
  • 16. Conclusions Short/medium term  10G GPON and 1G AON are competitive solutions for offering higher bandwidths at the subscriber sides (cf. 312 Mbps / subscriber) Longer term  Hybrid WDM/TDM 10G GPON  New functionalities with extra flexibility are made possible – Load balancing (possibility to offer full bit rate of 10G) – Energy saving – Network extensibility and migration  Comparable CAPEX cost as 10G GPON or 1G AON systems – Cost of transponders (ONU side) is an important issue that must be solved!  Good candidate for a NGOA (NG PON) system  Hybrid AON systems  By combining active switching and WDM PON and AON can offer even other functionalities 16/02/2011 - 16
  • 17. Thanks!Contact:  Bart Lannoo – bart.lannoo@intec.ugent.be  Kun Wang – kun.wang@acreo.se  Dominique Chiaroni – dominique.chiaroni@alcatel-lucent.com 16/02/2011 - 17