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

All Rights Reserved © Alcatel-Lucent 201013 | Green Telecommunications | June 2010

Merci