Transcript How do optical components enable tomorrow’s broadband

High-Capacity Backhaul in Advanced
Wireless Networks: the PON Solution
Introduction
Fred Leonberger
CIPS
Center for Integrated Photonic Systems
• Institute-wide community of researchers in
integrated photonics and systems
• Research focus ranges from materials and
devices to systems and economics
• Varied major activities
– CIPS Annual Meeting
– MIT/Industry Working Groups
• Affiliation with other MIT consortia
CIPS Optical Broadband
Working Group Activities
• Focus on next-gen PON architectures and enabling
components
• Monthly meetings, semi-annual workshops
– Cross-value-chain industry participation
– Wide range of expert guest speakers
• White papers
– Analysis of drivers, barriers and recommended actions for nextgen PONs
– Identification and study of key research topics
• OpEx and CapEx modeling of FTTx options
• Process-based cost modeling of key components
• Investigation of key limits/issues for XG-PON
Internet Traffic Growth
FTTH North American Homes Connected
(cumulative)
2.7M video
subs
FTTH Council
April 09: 15M homes passed, 1.5x subs/yr
GPON: Today’s Advanced PON
2.4 Gbps shared by
32 users (20km)
64 users (10km)
SmallONT
Businesses
2.4 Gbps out
1.2 Gbps in
Splitter
Splitter
10-100 Mbps
service rates
2
3
ONT
ONT
ONT
OLT
1
2
3
4
ONT
Splitter
ONT
1
20 km reach
Time Division Multiplexing
4
Splitter
ONT
GPON Components
Split ratio 1:32 or 1:64
2.5G Downstrm; 1.25G Upstrm
3 wavelengths
Burst-mode electronics and low-cost
photonic components are key
Future PON Capabilities and Technologies
• Reach/user extension
– Optical amplifiers (SOAs)
– Electronic regenerators
• Capacity enhancement
– 10GPON
– WDMPON
– WDM/TDM hybrid
– Long-reach PON
Next-Gen Broadband Architecture Options
Metro Core
Metro Edge
WDM-PON
LR-PON
GPON
Optical Access
Network
•WDM PON: Dedicated wavelengths (high capacity) per user
•Long Reach PON: Consolidation of metro (telecom) and access networks
•Hybrid TDM+WDM Networks
10GPON Evolution Scenario
10GPON provides capacity for IPTV
Mobile Backhaul Architecture
Ericsson
RAN evolves to IP
Backhaul Convergence with
GPON and FTTH
Ericsson
CapEx/OpEx re-use efficiency
FTTH can backhaul base stations
Access implements IP QoS functions
Agenda
2:45 - Introduction
Fred Leonberger, MIT
3:00 - Future Wireless Network Architecture Driven by Broadband Data Traffic
Berge Ayvazian, Wireless 20/20
3:25 - Carrier view of present and future backhaul requirements
Rajesh Yadav, Verizon
3:50 - GPON for Backhaul
Paul Wilford, Alcatel-Lucent
4:15 - The Emerging Importance of Fiber Backhaul to Support Wireless
Applications
Tom Huegerich, ADC
4:40 - Flexible & Economical EPON Solutions for Cellular Backhaul
Barry Gray,Teknovus and Jianhui Zhou, Broadway Networks
5:05 - Wrap