Transcript Alcatel-Lucent Bell Labs Optical Networks Research Domain

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
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
2 | Green Telecommunications | June 2010
All Rights Reserved © Alcatel-Lucent 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
3 | Green Telecommunications | June 2010
All Rights Reserved © Alcatel-Lucent 2010
Trends in Telecommunications Research
Approaching the Shannon limit
Optical Transport
Distance = 500 km
9
WAN wireless technologies
7
Shannon-bound
6
5
4
3
2
Copper Access
1
180
0
140
15
0
5
10
100
Shannon bound
20
SNR (dB)
30
35
40
Infeasible Region
(Mbps)
802.16
4 Shannon-bound
HSDPA
2
EV-DO
-5
+5
+15
Signal-to-Noise Ratio (dB)
5 Crosstalkers
24 Crosstalkers
60
20
1000
4 | Green Telecommunications | June 2010
25
Peak Data Efficiency (bps/Hz)
8
Downsteam Rate
Spectral efficiency (bits/s/Hz)
10
2000
3000
4000
Line Length (meters)
All Rights Reserved © Alcatel-Lucent 2010
Trends in Telecommunications Research
Power distribution vs. functionality
Average Power Consumption normalized to 2008
Core network equipment efficiency
Switch Category
Router
Ethernet Switch
Sonet/SDH Switch
ODU Switch
OOO-OEO Hybrid (25% add/drop)
0
200
400
600
800
1000
1200
Power Consumption (Watts/100Gbps)
Optics & Serdes
FEC
Framer/MAC
Data processing
Queuing
Switching
Control
Misc
OA
Oliver Tamm, et. al., BLTJ 2010
Router: 12 mW/Mb/s, 12 nJ/bit
Switch: 2-8 mW/Mb/s
ROADM: < 2 mW/Mb/s
“Today, telecom equipment consume 1-2%
of electricity production”
Need to have a GREEN TECHNOLOGIES-like way of thinking
Need to have a global trans-layer approach
5 | Green Telecommunications | June 2010
All Rights Reserved © Alcatel-Lucent 2010
Energy consumption forecast
Achieving the Potential ; Is this the best we can do?
(Watts
/ User)
Major
Applications
100
Observed
Trend
300 kWatts
Operates ~1 V
Digital, serial
Current
Potential
10
1
0.1
2008
6 | Green Telecommunications | June 2010
2012
2016
2020
All Rights Reserved © Alcatel-Lucent 2010
20 Watts
Operates ~3kT/q (mV)
Analog, parallel
Energy consumption forecast
Is this the best we can do?
(Watts
/ User)
Major
Applications
100
Assume
 Silicon-based Switching (No
assumption about unknown
technology)
Observed
Trend
 100% Fiber
Current
Potential
10
 No Redundancy (QoS)
 100% Mesh
 Power used Only when
Needed
1
Fundamental Limit?
0.1
2008
7 | Green Telecommunications | June 2010
2012
2016
2020
NO
… But there is an Effective
Technological Limit
All Rights Reserved © Alcatel-Lucent 2010
3
Green Touch™ Initiative:
A Five Year Quest to Achieve
Sustainable Networking
www.greentouch.org
Thinking Differently About Networks
Brilliant Minds …
Leading Experts
Protocols
Optimized for energy
Circuit Design
Holistic Approach
Network
Architectures
Multi-Discipline
Equivalent Performance
Transport
Advanced
Coding
9 | Green Telecommunications | June 2010
All Rights Reserved © Alcatel-Lucent 2010
GreenTouchTM
Demonstrate technologies in 5 years
that lead to a 1,000-fold energy efficiency increase
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
10 | Green Telecommunications | June 2010
All Rights Reserved © Alcatel-Lucent 2010
17 Founding Members
Protocols
Circuit Design
Network
Architectures
Transport
Advanced
Coding
11 | 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
All Rights Reserved © Alcatel-Lucent 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
12 | Green Telecommunications | June 2010
All Rights Reserved © Alcatel-Lucent 2010
Merci
13 | Green Telecommunications | June 2010
All Rights Reserved © Alcatel-Lucent 2010