Green Touch™ Initiative:
A Five Year Quest to
Achieve Sustainable
Networking
D. Kilper
Chair, Techical Committee
GreenTouch
The Network Energy Gap
50
Growth
40
Mobile
Data
Traffic
Internet
Backbone
30
Growing Gap!
20
Mobile
Efficiency
10
2005
Wireline
Efficiency
2010
2015
Year
GreenTouch © 2010
2020
2
Business-As-Usual Trends
100
Fixed Access
Mobile
WDM
Routing & Sw
High
Power/User (W)
Low
10
•
Model network using state-ofart commercial technology
•
Account for high and low
traffic trends by service
•
Switching, routing & WDM is
small, but growth is
unsustainable
•
Traffic growth:
>30%/year
•
Equipment efficiency:
10%-20%/year
1
0.1
2010
2015
2020
Year
Kilper, et. al., IEEE JSTQE 2011
GreenTouch © 2010
3
GreenTouch Consortium
29 Member Organizations
Protocols
Circuit Design
Network
Architectures
Transport
Advanced
Coding
www.greentouch.org
• AIT
• AT&T
• Bell Labs
• CEA LETI
• China Mobile
• Columbia University
• Draka
Dublin
Cityis
University
By 2015, •our
goal
to deliver the architecture,
• Emerson Network Energy
specifications
• ETRIand roadmap — and demonstrate key
• Freescale
components
— needed to increase network energy
• Huawei
efficiency•byIBBT
a factor of 1000 from current levels.
• IMEC
• INRIA
• K. A. Lueven
• Karlsruhe Institute of Technology
• King Abdul Aziz for Science and Technology
• Korea Telecom
• Politecnico di Milano
• Samsung
• Seoul National University
• Swisscom
• University of Cambridge
• University of Leeds
• University of Maryland
• University of Melbourne
• University of New South Wales
• Waterford Institute of Technology
Global Mission
4
GreenTouch © 2010
What is GreenTouch?
• Broad, open consortium executing research projects to
achieve aggressive goal
• Roadmap organization establishing reference
architectures and research targets to overcome major
challenges facing network scaling and energy
• Venue for cooperation and enabling demonstrations
among research organizations
• Forum for the exchange of information on energy
trends, challenges, and research on communication
networks
5
GreenTouch © 2010
5
GreenTouch Approach
• Bottom Up Research Organization
• Use of models to structure and guide research and
collaboration
• Funding through member contributions & external
sources
• Gauge impact of innovations on:
• Alternative metrics (carbon footprint, network power,
embedded energy)
• Adjacent technologies (data centers, handsets)
• Measure, model and predict energy consumption in ICT
networks (equipment trends, traffic, deployment)
GreenTouch © 2010
6
Consortium 5 Year Goal
100
Efficiency (Mb/s/W)
10
 Define architectures
1000x Target
 Demonstrate tech.
1
Use models for
network in 2020 to
set technology
demonstration
requirements
0.1
Total Network:
BAU
0.01
1E-3
1E-4
2010
2015
2020
Year
GreenTouch © 2010
7
Network Eff. Improvement
Use Architecture Models &
Targets to Track Progress
Goal
1000
Remaining
targets achieved
100
10
3 targets
achieved
1
2010
2011
2012
1 target
achieved
12 targets
achieved
Architecture 1
Architecture 2
Architecture 3
2013
2014
2015
2016
Year
•
Define architectures and track research results
• Identify targets for each architecture and update network efficiency in
model as targets are achieved
•
•
•
Working groups define targets and evaluate completion
Targets can be achieved within GreenTouch projects or from broader
community
Identify gaps in effort and solicit new activities
GreenTouch © 2010
8
Simple Spreadsheet Models for Each
Architecture
9
GreenTouch © 2010
Modeling Provides Clear Picture of Goals
Assumptions:
• Baseline year 2010
• Target year 2020
• GreenTouch results in five years: 2015
Efficiency in Mbps/W
1.E+04
Efficiency in Target Year
1.E+03
GreenTouch 5 year Goal: Element efficiency demonstration
targets for 2015
Overall network efficiency
target in 2020
1.E+02
1.E+01
1.E+00
1.E-01
1.E-02
1.E-03
1.E-04
Access
Transport
Rtg&Swg
Mobile
Overall
10
GreenTouch © 2010
GreenTouch Organization
Executive Board
Gee Rittenhouse
Technical Committee
Operations Committee
Dan Kilper, Shugong Xu
Thierry V. Landegem, Kevin Kemp
Services, Applications Trends
Network Committee
Steve Korotky
Rod Tucker, Man-Fai Wong
Working
Groups
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GreenTouch © 2010
GreenTouch Working Groups
Working
Groups
Access Networks
Wireline Access
Networks
L. Lefevre, F. Effenberger
Mobile Communications
U. Barth, Jongho Bang,
E. Calvanese-Strinati
Core Networks
Optical Networking &
Transmission
I. Tomkos, J-C Antona
Switching
and Routing
T. Klein, A.Pattavina
12
GreenTouch © 2010
Initial Activities
• Build research program
• First technology demonstration spring 2011
• Establish common reference architecture
• Define primary research targets
• Establish expected trends on key metrics to 2020
• Provide international forum for cooperation and
exchange of ideas on energy research topics
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GreenTouch © 2010
Seeking Cooperation
• Baseline reference architecture
• Current power consumption in network
• Deployed equipment
• Industry averages
• Variations between carriers or regions
• Energy trends to 2020
• Traffic models
• Equipment evolution models
• Semiconductor scaling
• Technology evolution
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GreenTouch © 2010
Green Touch™ Initiative
www.greentouch.org
GreenTouch © 2010
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