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GANDALF: Remote Delivery of Gbit/s Access Network using Optical Feeder for Heterogeneous Broadband Wireless and Wireline

"GANDALF is a project that proposes a novel optical feeder concept for co-existing and interoperable wireless and wireline access networks. It aims to provide high-bandwidth capabilities and cost reduction by using a shared fiber-based infrastructure. The project will identify suitable data formats and access techniques for simultaneous transmission via wireline and wireless networks and demonstrate the feasibility through laboratory and small field trials."

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GANDALF: Remote Delivery of Gbit/s Access Network using Optical Feeder for Heterogeneous Broadband Wireless and Wireline

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  1. GANDALF “Gbit/s Access Network using remote Delivery opticAL Feeder for heterogeneous broadband Wireless and wireline nodes” Project Presentation COPRAS Kick-off Meeting Brussels, 14 October 2004

  2. GANDALF Consortium 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

  3. 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

  4. fLO l GANDALF Overview GANDALF Scenario: heterogeneous Broadband wireless/wireline access networks Wireless Node Wireline Node Wireless Node Wireline Node Wireless Node Wireless Node Control Station fLO Optical signal Electrical signal Electrical signal at the receiver end Optical modulation scheme f f 2fLO Gigabit Ethernet • Both BB/IF and RF signal reception • Dispersion tolerant • Same modulationn scheme regardless of the access medium • LO remoting for downstream capabilities Control signals Cable Modem DVB-S

  5. GANDALF Overview 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 Added value • 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

  6. GANDALF Overview Project Orgsanisation WP1 WP2 WP2 System Conception System Conception WP7 WP7 WP3 WP6 WP6 Subsystem Standards Standards Design and Performance Optimisation Journals Journals Interoperability Conferences Conferences WP4 between Interoperability Dissemination between Wireless and Laboratory Industry Industry and Wireless and Wireline Wireline Platform Exploitation Dissemination Scenarios Scenarios and Exploitation Management Technical Process Flow WP5 WP5 Assessment Small scale Field Trial Results Dissemination Flow Small - - scale Field Trial and Evaluation

  7. Contribution to Standards • WP6: two kind of studies Interoperability between wireless and wireline scenarios • DOCSIS/wDOCSIS: lab and field trial • WiFi/WiMAX: lab trial at 5.5/42 GHz bands What are the wireline operation parameters or required modifications (at PHY level) that allow that simultaneous wireline/wireless operation?

  8. Contribution to Standards Interoperability between wireless and wireline scenarios WP6: • DOCSIS/wDOCSIS RF signal (5.486 GHz) IF signal (606 MHz) Optimisation parameters • Input power (signal and LO) • Frequency plan (channel spacing) • Modulation type • Noise sources • Wireless path Estimated Error Vector Magnitude (EVM) 64 QAM

  9. Contribution to Standards WP6: Interoperability between wireless and wireline scenarios • DOCSIS/wDOCSIS Interoperability between wireless and wireline scenarios

  10. Contribution to Standards WP6: Interoperability between wireless and wireline scenarios • WiFi/WIMAX Interoperability between wireless and wireline scenarios

  11. Contribution to Standards • WP6: two kind of studies Heterogeneous access networks • GbE and WiFi • DOCSIS and WiFi

  12. Contribution to Standards WP6: Heterogeneous access networks • GbE and WiFi

  13. Contribution to Standards WP6: Heterogeneous access networks • DOCSIS and WiFi

  14. Conclusion • GANDALF project can provide inputs regarding: • Simultaneous wireline/wireless service provision • 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 • Coexistence of wireline and/or wireless access techniques • GbE and Wi-Fi • DOCSIS and Wi-Fi • 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

  15. Contact Information URL: http://www.ist-gandalf.org Technical Manager Dr. Valentín Polo Tel: +34-963879768 Fax: +34-963877279 e-mail: vpolor@ntc.upv.es Project Co-ordinator Prof. Javier Martí Tel: +34-963879736 Fax: +34-963877279 e-mail: jmarti@ntc.upv.es Universidad Politécnica de Valencia Edificio IDI-5 Campus del Camino de Vera, S/N 46022 Valencia Spain

  16. Phase - + 13 dBm Wireless Wireless Downconverter Downconverter ) Locked access access 2x (G = 20 2x (G = 20 dB dB ) ) Control Control dBm Source f = data ( LO station station 18.5 GHz G = 36 G = 36 dB dB Optical power Local Local Oscillator Oscillator +16 +16 dBm dBm 3dB 3dB h h ybrid ybrid 2 m 2 m – – length length V V bias bias Wavelength ( nm ) 0 0 º º 90 90 º º radio link radio link 38 38 GHz GHz f f = = signal signal LO LO 18.5 18.5 GHz GHz Phase Phase - - 38 38 GHz GHz - - BPF BPF shifter shifter EDFA EDFA P P hotodetector hotodetector G = 20 G = 20 dB dB DD DD DD DD - - - - MZM MZM MZM MZM Electrical Electrical 25 25 km km 25 25 km km spectrum spectrum DFB DFB Laser Laser SSMF link SSMF link SSMF link SSMF link analyzer analyzer 1 1 GHz GHz +3 +3 dBm dBm 1G 1G Hz Hz - - BPF BPF M M - - QAM/ QAM/ + + + QAM QAM analyzer analyzer + + + QPSK QPSK Wireline (BER, (BER, 1 1 GHz GHz signal signal access constellation constellation signal signal ) ) Back-up

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