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Transcript of Green telecommunications for sustainable networks & the GreenTouch Consortium Jean-Pierre Hamaide,...
Green telecommunications for
sustainable networks
& the GreenTouch Consortium
Jean-Pierre Hamaide, Alcatel-Lucent, Bell Labs
Réunion IREST – Thème « La contribution des TIC au développement durable »
Paris, 17 Juin 2010
All Rights Reserved © Alcatel-Lucent 20102 | Green Telecommunications | June 2010
The need for digital transport is growing exponentially
Information is of little use if you have to keep it to yourself Humans have a desire to interact (Cell phones, YouTube, …) Requires huge transport capacities (especially for real time app’s)
Computers also want to talk: 1 Flop triggers ~1 Byte/s of transport Coupled with exponential growth in computing power
Telepresence
Traffic Projections (North America)Collect data from: RHK, McKinsey-JPMorgan, AT&T, MINTS, Arbor
All Rights Reserved © Alcatel-Lucent 20103 | Green Telecommunications | June 2010
Trends in Telecommunications Research Slowdown in Technology
We are seeing slowdown in some technologies that we have relied on.
The reduction in dynamic dissipation of silicon with reduction in feature size is slowing.
Capacity of single rack IP routers due to thermal density is saturating
Capacity of a single fiber transmission system saturating
All Rights Reserved © Alcatel-Lucent 20104 | Green Telecommunications | June 2010
Trends in Telecommunications Research Approaching the Shannon limit
0 5 10 15 20 25 30 35 400
1
2
3
4
5
6
7
8
9
10
SNR (dB)
Sp
ect
ral effi
ciency
(bit
s/s/
Hz) Distance = 500 km
Shannon-boundShannon-bound
Optical TransportOptical Transport
Copper Access
100
180
1000 2000 3000
Dow
nst
eam
Rate
(M
bps)
Line Length (meters)4000
140
60
20
5 Crosstalkers24 Crosstalkers
Shannon bound
2
4
-5 +5 +15
Peak D
ata
Effi
ciency
(bps/
Hz)
Signal-to-Noise Ratio (dB)
WAN wireless technologies
Shannon-bound
Infeasible Region
EV-DO
802.16
HSDPA
All Rights Reserved © Alcatel-Lucent 20105 | Green Telecommunications | June 2010
Trends in Telecommunications Research Power distribution vs. functionality
Router: 12 mW/Mb/s, 12 nJ/bitSwitch: 2-8 mW/Mb/sROADM: < 2 mW/Mb/s
0 200 400 600 800 1000 1200
Power Consumption (Watts/100Gbps)
OOO-OEO Hybrid (25% add/drop)
ODU Switch
Sonet/SDH Switch
Ethernet Switch
Router
Sw
itch
Cate
go
ry
Average Power Consumption normalized to 2008
Optics & Serdes FEC Framer/MAC Data processing Queuing Switching Control Misc OA
Core network equipment efficiency
Oliver Tamm, et. al., BLTJ 2010
“Today, telecom equipment consume 1-2% of electricity production”
Need to have a GREEN TECHNOLOGIES-like way of thinkingNeed to have a global trans-layer approach
All Rights Reserved © Alcatel-Lucent 20106 | Green Telecommunications | June 2010
Energy consumption forecastAchieving the Potential ; Is this the best we can do?
2012 2016 2020
(Watts/ User) Major Major
ApplicationsApplications
2008
Current Potential
Observed Trend
10
100
1
0.1 20 WattsOperates ~3kT/q (mV)Analog, parallel
20 WattsOperates ~3kT/q (mV)Analog, parallel
300 kWattsOperates ~1 VDigital, serial
300 kWattsOperates ~1 VDigital, serial
All Rights Reserved © Alcatel-Lucent 20107 | Green Telecommunications | June 2010
Silicon-based Switching (No assumption about unknown technology)
100% Fiber No Redundancy (QoS) 100% Mesh Power used Only when
Needed
AssumeAssume
Energy consumption forecastIs this the best we can do?
2012 2016 2020
(Watts/ User) Major Major
ApplicationsApplications
2008
Fundamental Limit? NONO… But there is an Effective Technological Limit
Current Potential
Observed Trend
10
100
1
0.1
Green Touch™ Initiative:
A Five Year Quest to
Achieve Sustainable
Networking
3www.greentouch.orgwww.greentouch.org
All Rights Reserved © Alcatel-Lucent 20109 | Green Telecommunications | June 2010
Thinking Differently About Networks
Brilliant Minds … Leading Experts
Optimized for energy
Holistic Approach
Multi-Discipline
Equivalent Performance
Circuit Circuit DesignDesign
Network Network ArchitecturArchitectur
eses
AdvanceAdvanced d
CodingCoding
ProtocoProtocolsls
TranspoTranspo
rtrt
All Rights Reserved © Alcatel-Lucent 201010 | Green Telecommunications | June 2010
GreenTouchTM
Draw on expertise across the industry and around the world
Open invitation to the entire industry
Founding members are experts from world’s top institutions and operators
Demonstrate technologies in 5 years that lead to a 1,000-fold energy efficiency increase
All Rights Reserved © Alcatel-Lucent 201011 | Green Telecommunications | June 2010
Massachusetts Institute of Technology’s (MIT) Research Laboratory for Electronics (RLE)
Stanford University’s Wireless Systems Lab (WSL)
University of Melbourne’s Institute for a Broadband-Enabled Society (IBES)
Telefonica Swisscom China Mobile AT&T Portugal Telecom imec CEA-LETI Applied Research Institute for
Microelectronics The French National Institute for Research in
Computer Science and Control (INRIA) Foundation Communications Mobile Freescale Semiconductor Samsung Advanced Institute of Technology Huawei France Telecom Bell Labs
17 Founding Members
Circuit Circuit DesignDesign
Network Network ArchitecturArchitectur
eses
AdvanceAdvanced d
CodingCoding
ProtocProtocolsols
TranspoTranspo
rtrt
All Rights Reserved © Alcatel-Lucent 201012 | Green Telecommunications | June 2010
Just To Recap
• Eco-sustainability is CRUCIAL for ICT
• The industry just doesn’t have a current solution
• Bell Labs’ research confirms that there is a tremendous opportunity
• We’re bringing together the right people from the right institutions from across the world to realize it