Ioannis Tomkos 1 1 1 www.ait.edu.gr www.ait.edu.gr www.ait.edu.gr www.ait.edu.gr www.ait.edu.gr www.ait.edu.gr www.ait.edu.gr www.ait.edu.gr Dr. Ioannis Tomkos Techno Techno Techno Techno Techno Techno Techno Techno - - - - - - economic Evaluation of economic Evaluation of economic Evaluation of economic Evaluation of economic Evaluation of economic Evaluation of economic Evaluation of economic Evaluation of Next Generation Next Generation Next Generation Next Generation Next Generation Next Generation Next Generation Next Generation FTTx FTTx FTTx FTTx FTTx FTTx FTTx FTTx Access Access Access Access Access Access Access Access Network deployments Network deployments Network deployments Network deployments Network deployments Network deployments Network deployments Network deployments
34
Embed
Techno ----economic Evaluation of Next Generation FTTx … · IoannisTomkos 1111 Dr. Ioannis Tomkos Techno ----economic Evaluation of Next Generation FTTx Access Network deployments
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
TechnoTechnoTechnoTechnoTechnoTechnoTechnoTechno--------economic Evaluation of economic Evaluation of economic Evaluation of economic Evaluation of economic Evaluation of economic Evaluation of economic Evaluation of economic Evaluation of
Next Generation Next Generation Next Generation Next Generation Next Generation Next Generation Next Generation Next Generation FTTxFTTxFTTxFTTxFTTxFTTxFTTxFTTx Access Access Access Access Access Access Access Access
Drivers for NGA deploymentsDrivers for NGA deploymentsDrivers for NGA deploymentsDrivers for NGA deploymentsDrivers for NGA deploymentsDrivers for NGA deploymentsDrivers for NGA deploymentsDrivers for NGA deployments
WhatWhatWhatWhat’’’’s The Next s The Next s The Next s The Next ““““Killer AppKiller AppKiller AppKiller App”””” for for for for ““““tomorrowtomorrowtomorrowtomorrow””””????
Source: Cisco Systems
� Future 3-play services supporting multi-channel HDTV and 3D TV require huge bandwidth
� Furthermore there are upcoming services that are huge bandwidth generating sources:
• multi-player on-line gaming
• cloud computing
• Storage
• remote application hosting
• social networking and collaboration applications (i.e. videoconferencing, tele-presense)
• home management services (i.e. video surveillance)
� Cisco estimated that the average number of services that generate significant traffic increased from 11 to 18 over the past year
� ...and in addition to that the average number of users per household increases as well
New services/applications and bandwidth demandNew services/applications and bandwidth demandNew services/applications and bandwidth demandNew services/applications and bandwidth demand
� The applications that are expected to flood the market (HDTV, 3D TV, tele-presence) are driving the demand forward
• The typical bandwidth demand/ household is anticipated to exceed soon 80 Mbps
Correlation among required media bandwidth Correlation among required media bandwidth Correlation among required media bandwidth Correlation among required media bandwidth
Evolution of access network architectureEvolution of access network architectureEvolution of access network architectureEvolution of access network architectureEvolution of access network architectureEvolution of access network architectureEvolution of access network architectureEvolution of access network architecture
FTTEx(ADSL2+) FTTCab(VDSL2)
FTTB
FTTH ONT
Modem
DSLAMModem
MDU-ONUModem OLT
OLT
Aggregation Network
Aggregation Network
Aggregation Network
Aggregation Network
DSLAM
Central Office Metro Access NodeCabinetHome / Building
Access bit rate
Tod
ayN
ear
Fut
ure
Source: Dirk Breuer et.al., DT
Note that in addition to FTTH, FTTC & FTTB are also considered NGA solutions…
Is there only one solution?Is there only one solution?Is there only one solution?Is there only one solution?Is there only one solution?Is there only one solution?Is there only one solution?Is there only one solution?
A more detailed view on possible solutions A more detailed view on possible solutions A more detailed view on possible solutions A more detailed view on possible solutions A more detailed view on possible solutions A more detailed view on possible solutions A more detailed view on possible solutions A more detailed view on possible solutions
Trends in Trends in Trends in Trends in Trends in Trends in Trends in Trends in FTTxFTTxFTTxFTTxFTTxFTTxFTTxFTTx access networksaccess networksaccess networksaccess networksaccess networksaccess networksaccess networksaccess networks
Key requirements for NG FTTH:* Long reach* High splitting ratio
NGNGNGNG----PON roadmap PON roadmap PON roadmap PON roadmap From G/E From G/E From G/E From G/E PONsPONsPONsPONs to NGto NGto NGto NG----PON1 to NGPON1 to NGPON1 to NGPON1 to NG----PON2PON2PON2PON2
WDM PON with wavelength routingWDM PON with wavelength routingWDM PON with wavelength routingWDM PON with wavelength routingWDM PON with wavelength routingWDM PON with wavelength routingWDM PON with wavelength routingWDM PON with wavelength routing
� UDWDM uses an extremely narrow wavelength grid to pack a high amount of low to medium speed channels in a small wavelength band. The high number of multiplexed channels sums up to a high aggregate capacity on the metro link, for instance 100 channels with 1 Gbps each (100 Gbps).
� To enable the high channel density needed to accommodate the channel number in a moderate wavelength interval, a narrow filtering method is required to perform the channel selection in the receivers. In addition, to achieve a power budget which covers passive transmission over metro distances and high splitting passive optical networks, high receiver sensitivity is a pivotal element. Coherent receivers with single-channel electrical (noise) bandwidth only, combined with modulation schemes which employ constellations with high symbol distances are hence preferable.
NGA technologies enabling longNGA technologies enabling longNGA technologies enabling longNGA technologies enabling longNGA technologies enabling longNGA technologies enabling longNGA technologies enabling longNGA technologies enabling long--------reach reach reach reach reach reach reach reach PONsPONsPONsPONsPONsPONsPONsPONs and and and and and and and and
TechnoTechnoTechnoTechnoTechnoTechnoTechnoTechno--------economic evaluation of NGA network economic evaluation of NGA network economic evaluation of NGA network economic evaluation of NGA network economic evaluation of NGA network economic evaluation of NGA network economic evaluation of NGA network economic evaluation of NGA network
architectures in terms of the outside plant costsarchitectures in terms of the outside plant costsarchitectures in terms of the outside plant costsarchitectures in terms of the outside plant costsarchitectures in terms of the outside plant costsarchitectures in terms of the outside plant costsarchitectures in terms of the outside plant costsarchitectures in terms of the outside plant costs
The biggest cost is in construction worksThe biggest cost is in construction worksThe biggest cost is in construction worksThe biggest cost is in construction worksThe biggest cost is in construction worksThe biggest cost is in construction worksThe biggest cost is in construction worksThe biggest cost is in construction works
Assumptions on construction costsAssumptions on construction costsAssumptions on construction costsAssumptions on construction costsAssumptions on construction costsAssumptions on construction costsAssumptions on construction costsAssumptions on construction costs
� Depending on the households density a different trench size should be used at different parts of the OSP network (i.e. feeder, distribution, drop).
� The cost of each trench includes:• Trenching cost• Backfilling cost• Blacktopping cost• Duct installation cost
� Trenching on pavements is considered to be significantly higher than trenching on roads or countryside
Example results:Example results:Example results:Example results:Example results:Example results:Example results:Example results:
Comparison of various Comparison of various Comparison of various Comparison of various Comparison of various Comparison of various Comparison of various Comparison of various FTTxFTTxFTTxFTTxFTTxFTTxFTTxFTTx architecturesarchitecturesarchitecturesarchitecturesarchitecturesarchitecturesarchitecturesarchitectures
Example results:Example results:Example results:Example results:Example results:Example results:Example results:Example results:
P2P P2P P2P P2P P2P P2P P2P P2P Ethernet+metroEthernet+metroEthernet+metroEthernet+metroEthernet+metroEthernet+metroEthernet+metroEthernet+metro vs. vs. vs. vs. vs. vs. vs. vs. GPON+metroGPON+metroGPON+metroGPON+metroGPON+metroGPON+metroGPON+metroGPON+metro vs. LRvs. LRvs. LRvs. LRvs. LRvs. LRvs. LRvs. LR--------PONPONPONPONPONPONPONPON
Cost comparisons of current (GPON) and next Cost comparisons of current (GPON) and next Cost comparisons of current (GPON) and next Cost comparisons of current (GPON) and next Cost comparisons of current (GPON) and next Cost comparisons of current (GPON) and next Cost comparisons of current (GPON) and next Cost comparisons of current (GPON) and next
� The results show that CAPEX/user range depending on the technology used and that a decrease in the range of 20% can be achieved between EP2P & GPON as well as between GPON and the ring-tree PON.
Example results:Example results:Example results:Example results:Example results:Example results:Example results:Example results:
Legacy PON vs. NG high splitting ratioLegacy PON vs. NG high splitting ratioLegacy PON vs. NG high splitting ratioLegacy PON vs. NG high splitting ratioLegacy PON vs. NG high splitting ratioLegacy PON vs. NG high splitting ratioLegacy PON vs. NG high splitting ratioLegacy PON vs. NG high splitting ratio--------PONPONPONPONPONPONPONPON
OSP cost comparison of OSP cost comparison of OSP cost comparison of OSP cost comparison of OSP cost comparison of OSP cost comparison of OSP cost comparison of OSP cost comparison of PONsPONsPONsPONsPONsPONsPONsPONs
� We presented the main NGA architectures and future FTTH technologies
� We presented the main benefits expected from future NG-PON2 deployments
� We discussed issues associated with the outside plant costs of various FTTx solutions and we showed what are the savings to be expected when deploying NG-PON2-like solutions
Thank you for your attention!Thank you for your attention!Thank you for your attention!Thank you for your attention!Thank you for your attention!Thank you for your attention!Thank you for your attention!Thank you for your attention!