FT OMEGA Rennes Tutorial PLC SoA v1.0

8/8/2019 FT OMEGA Rennes Tutorial PLC SoA v1.0

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OMEGA Open event, Rennes, 5 Feb. 2009 ICT-213311 OMEGA 1

Powerline communications (PLC)

state of the artMarie LE BOT, Pierre SIOHAN, Pascal PAGANI

France Telecom Orange Labs


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Agenda

PLC within OMEGA framework Electrical network

Electromagnetic compatibility

Consortiums and standardisation bodies

OMEGA scenarios and requirements

Perspectives


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Agenda





Perspectives


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PLC within OMEGA framework

Powerline communications (PLC):

The electrical network is used to transmit high data ratecommunications

In-home applications: PLC indoor network can be connected to other accesstechnologies (optical fibre, xDSL, etc.)

Coexistence between the different PLC standards Coexistence between neighbouring houses


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Agenda





Perspectives


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Electrical network (1/2)

Example of access network that provides internet


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Electrical network (2/2)

Examples of in-home applications

Office

Room

Living Room

Room

Digital Set Top Box / PVR

HDTV

Video game Video phone


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Agenda





Perspectives


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Electromagnetic compatibility (1/2)

Many committees involved in radio spectrum management:ITU, CENELEC, CISPR, FCC

Example:

OMEGA extensionOMEGA extensionOMEGA extensionOMEGA extension

ExistingExistingExistingExisting

technologiestechnologiestechnologiestechnologies

0 30 100 MHz

Tone mask

-50 dBm/Hz

Mask to be specified


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Electromagnetic compatibility (2/2)

Specification mask for the indoor PLC of North-AmericaHomePlug AV


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Agenda





Perspectives


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Consortiums & standardisation bodies

Consortiums:

HomePlug Powerline Alliance UPA: Universal Powerline Association

CEPCA: Consumers Electronics PowerlineCommunication Alliance

HomeGrid Forum

Standardisation bodies:

ITU G.hn IEEE P1901

ETSI PLTP1901

G.hn

PLT


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Consortiums

HomePlug Powerline Alliance

Membership: Industry alliance (more than 70companies)

Scope: To promote cost effective, interoperable andstandard-based home powerline networks and products

Specification for PLC standards: HomePlug AV

Target rate: 200 Mbps at PHY layer

Frequency band: 0-30 MHz

1 PHY layer based on FFT OFDM + CTC FEC


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Consortiums

HomePlug Powerline Alliance latest news:

New generation standard HPAV 2: MRD (Marketing Requirements Definition) document finalised

Working groups creation on-going

Chipmakers expected to be HomePlug compliant in 2009(in addition to Intellon):

Spidcom

Gigle ST Microelectronics Arkados


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Consortiums

Universal Powerline Association (UPA)

Membership: Industry group working in collaborationwith OPERA research project (more than 20 companies)

Scope: To deliver UPA certified products which complywith agreed specifications

Specification for PLC standards: UPA Digital Home

Specification v1.0

Target rate: 200 Mbps at PHY layer

Frequency band: 0-30 MHz

1 PHY layer based on window OFDM


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Standardisation bodies

ITU G.hn

Membership: International Telecommunication Unionstudy group (more than 20 companies)

Scope: To develop the worldwide standard for the nextgeneration home networking technologies (coaxial

cable, phone and power lines)

PLC standard: ITU G.9960

Target rate: 1 Gbps at PHY layer, over 1 wire technology

1 PHY layer based on FFT OFDM (no other publicinformation)


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More details about the ITU G.hn scope:

Home networking (HN) transceivers capable ofoperating over different types of premises wiringincluding telephone wiring, coaxial cable, power line

wiring, data grade cables (e.g. CAT-5)

Provide the data bit rate and QoS necessary for triple-play residential services and business-type services

The transceivers use OFDM type of modulation and

provide EMC and spectral compatibility xDSL accesssystems.


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ITU G.hn latest news:

Dec 08: ITU-T G.hn Foundation document reachedconsent, which starts the approval process

The consented document, named G.9960, includes

HN architecture and reference models

PHY layer specification

G.9960 approval expected Sept. 2009

Homegrid forum: industry group that promotes the ITU

G.hn standardization efforts


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IEEE P1901

Membership: IEEE standards working group, includingindustrial companies, manufacturers, universities andgovernment agencies (more than 60 entities)

Scope: To develop a "Standard for broadband over

powerline networks: Medium access control andphysical layer specifications"

PLC standard: draft status

Target rate: > 100 Mbps at PHY layer Frequency band: < 100 MHz


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IEEE P1901 latest news:

Dec. 2008: IEEE P1901 reached confirmation vote basedon a baseline document including 3 PHY-MAC layers:

HPAV

HD-PLC (Panasonic)

G.hn compliant

Complete PHY/MAC layer specification is scheduled for

Q3 2009


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Comparison of existing products

ADTDMTDMA-CSMA/CATDMA-CSMA/CAMedia AccessMethod

200 Mbps200 Mbps190 MbpsPHY Rate

0-30 MHz2-28 MHz4-28 MHzFrequency band

NC75 MHz62.5 MHzSample frequency

NC3072512 (extendable to 2048)FFT/FB sizeADPSK 2-1024QAM 2-1024PAM 2-32Mapping

RS + 4D-TCMconcatenation

CTCRS-CC;LDPC optional

Channel coding

windowed OFDMwindowed OFDMwavelet OFDMModulation

UPAHPAVHD-PLC (Panasonic)


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ETSI PLT

Membership: European Telecommunications StandardsInstitute technical committee

Scope: To define technical requirements forcoexistence among users of the radio spectrum

Latest news:

Creation of a working group dedicated to G.hn

incorporation in Europe


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Agenda





Perspectives


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OMEGA scenarios and

requirements (1/4)

Target throughput: 1Gbps

Some reference use cases:

320 Mbps average; 1 Gbps peakHigh rate SOHO

70 MbpsSingle user

80 Mbps average; 1 Gbps peakHome-working90 MbpsFamily

Rate


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OMEGA scenarios and

requirements (2/4)

Coexistence/compatibility requirements for

OMEGA PLC system: Be compatible with HPAV in [0 30] MHz

Ensure coexistence with the other technologies in the

wide band (> 30 MHz)


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OMEGA scenarios and

requirements (3/4)

0 3010 4020 50 60 9070 10080

Frequency [MHz]

0

-20

-40

-60

-80

-100

-120

-140

-160

8

6

4

2

0

-2

-4

-60 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

Time [ms]Frequency [MHz]

-35

-40

-45

-50

-55

-60

-65

-70

-75

-80

-85

0 3010 4020 50 60 9070 10080

Example of PLC channel profile

Amplitude [dB] Phase [rad] Impulse response


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OMEGA scenarios and

requirements (4/4)

Examples of impulsive noise profiles:

coffee maker ON coffee maker OFF

0.5

-2

-1.5

-1

-0.5

0

1

Amplitude(V)

0 5 10 15 20 25 30 35 40 45 50

Time (ms)

-6

-5

-4

-3

-2

-1

0

1

2

3

Amplitude

(V)

0 5 10 15 20 25 30 35 40 45 50

Time (ms)


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Agenda



Consortiums and standardisation bodies OMEGA scenarios and requirements

Perspectives


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Conclusions / Perspectives

OMEGA WP3:

PLC potentially applies for OMEGA in-home backbone Expected rate: 1 Gbps

Improvements of the existing PLC standards:

wide band (100 MHz) advanced modulation,

coding,

signal processing, etc...

Hardware platform demonstrator scheduled for end

2009 (1st version)


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Questions?

FT OMEGA Rennes Tutorial PLC SoA v1.0

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