GANDALF “G bit/s A ccess N etwork using remote D elivery

GANDALF presentation, COPRAS kick-off meeting, October 14 2004, Brussels

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GANDALF“Gbit/s Access Network using remote DeliveryopticAL Feeder for heterogeneous broadband

Wireless and wireline nodes”

Project PresentationCOPRAS Kick-off MeetingBrussels, 14 October 2004


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1. Universidad Politecnica de Valencia (Spain) - Coordinator 2. FiberNet S.L. (Spain) 3. Royal Institute of Technology (Sweden) 4. Thales Communications (France) 5. Thales Research and Technology (France) 6. University College London (UK) 7. Budapest University of Technology and Economics (Hungary) 8. Mobitel (Hungary) 9. Cableuropa-ONO (Spain)

5 countries represented and 2 SMEs

GANDALF Consortium


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GANDALF Overview

Access network scenario: • Co-existence and interoperability between wireline and wireless

access technologies

• Upgradeability, multi-band/multi-service capabilities and cost effectiveness

Proposes a novel optical feeder concept that allows co-existence of wireless and wireline access networks using a shared fibre-based infrastructure.

+ high-bandwidth capabilities (GHz/Gbps range)

+ cost-reduction (required O/E bandwidth, highly integrated BS approach)

Requires identification of data formats/access techniques suitable for simultaneous transmission via wireline and wireless access networks.

Laboratory and small field trial demostrating simultaneous and interoperable wireless and wireline transmissions.

GANDALF project


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GANDALF OverviewGANDALF Scenario: heterogeneous Broadband wireless/wireline access networks

ControlStation

WirelessNode

WirelessNode

WirelessNode

WirelineNode

WirelineNode

Optical modulation

scheme

Control signals

f

fLO

Optical signalElectrical signalfLO

Gigabit Ethernet

Cable Modem

DVB-S

f

Electrical signal at the receiver end

2fLO

- Both BB/IF and RF signal reception- Dispersion tolerant- Same modulationn scheme regardless of the access medium - LO remoting for downstream capabilities

WirelessNode


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Project key issues• Highly flexible approach (simultaneous operation at BB/IF and mm-wave bands)

• Reduced hardware requirements reduced cost and complexity at both BS & CS

• Operational up to 60 GHz using state-of the art components

• No dispersion induced RF fading

• The proposed architecture is fully compliant with DWDM schemes

• Simultaneous service provision in two frequency bands: BB/IF and mm-wave (e.g. CEPT DVB-S @10 GHz and LMDS @40 GHz compliance)

• Reduced implementation and maintenance cost

• Case study: a CATV operator can provide service through a HFC (wireline) network and an LMDS network (wireless) using the same infrastructure

Simultaneous wireless+wireline access results in Ubiquitous BA

Added value

GANDALF Overview


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Project Orgsanisation

GANDALF Overview

WP1

Standards

Journals

Conferences

Industry

Standards

Journals

Conferences

Industry

WP7

Disseminationand

Exploitation

WP7

Dissemination

andExploitation

WP2System Conception

WP2 System Conception

WP3SubsystemDesign andPerformance

Optimisation

WP4

Laboratory

Platform

WP5Small-scale Field Trial

WP5Small -scale Field Trial

WP6

Interoperabilitybetween

Wireless andWireline

Scenarios

WP6

InteroperabilitybetweenWireless andWirelineScenarios

ManagementAssessment

and Evaluation

Technical Process Flow

Results Dissemination Flow


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WP6: two kind of studies

• DOCSIS/wDOCSIS: lab and field trial

• WiFi/WiMAX: lab trial at 5.5/42 GHz bands

Interoperability between wireless and wireline scenarios

CS BS

dual CPECS BS

dual CPE

108-862 MHz108-862 MHz108-862 MHz

108-862 MHz108-862 MHz5-5.8 GHz

What are the wireline operation parameters or required modifications (at PHY level) that allow that simultaneous wireline/wireless operation?

Contribution to Standards


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WP6:

• DOCSIS/wDOCSIS


Carrier (MHz) EVM_IF (%) EVM_RF (%)606 4,1562 7,4848612 4,5495 7,6913618 4,5686 7,6588624 4,669 7,6693630 4,6275 7,7338636 4,589 7,7125642 4,6452 7,7324648 4,7057 7,7774654 4,5894 7,7612660 4,3177 7,5413

Estimated Error Vector Magnitude (EVM) 64 QAM

IF signal (606 MHz) RF signal (5.486 GHz)

• Input power (signal and LO)

• Frequency plan (channel spacing)

• Modulation type

• Noise sources

• Wireless path

Optimisation parameters


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WP6:

• DOCSIS/wDOCSIS




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WP6:

• WiFi/WIMAX




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WP6: two kind of studies

• GbE and WiFi

• DOCSIS and WiFi

Heterogeneous access networks



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WP6:• GbE and WiFi


BER GbE vs. powers with filter

1,00E-301,00E-281,00E-261,00E-241,00E-221,00E-201,00E-181,00E-161,00E-141,00E-121,00E-101,00E-081,00E-061,00E-041,00E-021,00E+00

-40 -30 -20 -10 0 10

GbE power (dBm)

BE

R

WiFi -10 dBm, BB

WiFi -10 dBm, RF

WiFi -4 dBm, BB

WiFi -4 dBm, RF

WiFi -16 dBm, BB

WiFi -16 dBm, RF

EVM WiFi vs. powers with filter

-18

-17

-16

-15

-14

-13

-12

-11

-10

-30 -20 -10 0 10

power WiFi (dBm)

GbE -14dBm, IF

GbE -14dBm, RF

GbE -4dBm, IF

GbE -4dBm, RF

GbE - 24dBm, IF

GbE -24dBm, RF



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WP6:• DOCSIS and WiFi


DOCSIS MER

16

18

20

22

24

26

28

30

32

34

-60 -40 -20 0 20

DOCSIS power per carrier

(dBm)

MER IF, WiFi = -10dBm

MER RF, WiFi = -10dBm







WiFi EVM

-18

-17

-16

-15

-14

-13

-12

-11

-10

-9

-8

-60 -40 -20 0 20

WiFi power per carrier

(dBm)

EVM IF, DOCSIS =-10dBm

EVM RF, DOCSIS= -10dBm









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ConclusionGANDALF project can provide inputs regarding:

Simultaneous wireline/wireless service provision

Coexistence of wireline and/or wireless access techniques

• GbE and Wi-Fi• DOCSIS and Wi-Fi

• Performance of wireline access techniques in wireless scenarios: - DOCSIS/wDOCSIS

• Simultaneous provision of OFDM signals in Wi-Fi and WIMAX bands- Suitability and performance of OFDM @ 40 GHz

Desired inputs from COPRAS and standardisation bodies

• Possible standardisation bodies interested in GANDALF developments• Specifications• Evolution of standards• Suitability of the activities developed in GANDALF


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Contact Information

URL: http://www.ist-gandalf.org

Project Co-ordinatorProf. Javier MartíTel: +34-963879736Fax: +34-963877279e-mail: [email protected]

Technical ManagerDr. Valentín PoloTel: +34-963879768Fax: +34-963877279e-mail: [email protected]

Universidad Politécnica de ValenciaEdificio IDI-5

Campus del Camino de Vera, S/N46022 Valencia

Spain


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Back-up

DD-MZM

DFB Laser

LocalOscillator

DD-MZM25 km

SSMF link

38 GHz signal

Photodetector38GHz-BPF

1GHz-BPF

0º 90º

Phase-shifter

fLO = 18.5 GHz

3dB hybrid

++

1 GHz M-QAM/QPSK signal

25 km SSMF link

EDFAG = 20 dB

Vbias

+3 dBm

1 GHz signal

2 m – lengthradio link

Controlstation

G = 36 dB

Downconverter2x (G = 20 dB)

+16 dBm

Electricalspectrumanalyzer

QAM analyzer(BER,

constellation)

Wirelessaccess

fLO = 18.5 GHz

Phase-LockedSource

Wirelineaccess

+ 13 dBm

data

Opt

ical

pow

er (

dBm

)

Wavelength (nm)

DD-MZM

DFB Laser

LocalOscillator

DD-MZM25 km

SSMF link

38 GHz signal

Photodetector38GHz-BPF

1GHz-BPF

0º 90º

Phase-shifter

fLO = 18.5 GHz

3dB hybrid

++++

1 GHz M-QAM/QPSK signal

25 km SSMF link

EDFAG = 20 dB

Vbias

+3 dBm

1 GHz signal

2 m – lengthradio link

Controlstation

G = 36 dB

Downconverter2x (G = 20 dB)

+16 dBm

Electricalspectrumanalyzer

QAM analyzer(BER,

constellation)

Wirelessaccess

Documents

GANDALF “G bit/s A ccess N etwork using remote D elivery