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Access Network in EURESCOM Projects, and the P614 Project. Michalis Mavis P614 EURESCOM Project Supervisor. Umberto Ferrero CSELT (P614 Project Leader). Participants coming from 12 companies (EURESCOM Shareholders). P614 as source of “access network” information.
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Access Network in EURESCOM Projects, and the P614 Project Michalis Mavis P614EURESCOM Project Supervisor Umberto Ferrero CSELT (P614 Project Leader) Participants coming from 12 companies (EURESCOM Shareholders)
P614 as source of “access network” information • P614 is becoming increasingly popular as a • reference source of independent broadband • access network recommendations • WEB sites • http://www.cselt.it/Cselt/euresc/P614 http://www.eurescom.de • request for reprints and documents from operators, • manufacturers, journalist and consultants all over the world • Conferences, magazines, workshops • Deliverables are public domain
Shareholders over 20 Telecom Operators (Telcos) ... with several service and network scenarios no “one size fits all” approach Identification of areas of common interest Access network-related studies since 1991 Common results (EURESCOM P306 and P413) Customer-specific customization EURESCOM and the access network: managing the European diversity FSAN ATM - PON
Access network in EURESCOM P306: Access network evolution and preparation for implementation WOMAN WORKSHOP P413: Optical networking in the local loop • P614: Implementation strategies for advanced access networks • Outline of specifications for broadband access networks • Migration paths towards B-ISDN access networks • Exploration of broadband radio access • FTTx enabling technologies • FTTH architectures, services and technical issues • Techno-economic evaluation and comparison of identified B-ISDN/ATM based network alternatives 1992-94 1994-96 ANCIT WORKSHOP BAHN WORKSHOP 1996-98
P614 addresses several access network architectures
Mobile Fixed radio access Satellite PSTN (existing copper plant) Powerlines Broadband overlay network CATV network Access as a commodity? USER Several access infrastructures can be exploited in the same area
FSAN based PON solutions identified as technology of choice by EURESCOM P306 (April 1994, “Guidelines for broadband access networks”) full PON specification now available (ITU-T G.983) approaching market availability Point to point systems ... both complemented by a range of high speed copper access systems ATM common platform Target technologies for fixed access
Component technology Maturity and cost Outside plant technology Cabling, ducting, connectors, cabinets Powering Testing Transmission technology Point to point links (access and drop) Exploitation of WDM Alternative drop technologies (CDSL, powerlines) RFI on Plastic Optical Fibres (POFs) FTTx enabling technologiesTopics addressed by P614
... or under the ground: the importance of outside plant technologies powering cabinets digging, ducting cabling 70% of the access network costs is due to infrastructure: how this burden can be reduced? Re-using copper wires Adopting innovative installation techniques! Down to earth
Broadband RADIO ACCESS Terrestrial solutions LMDS / MMDS P614 is also addressing issues related to radio access RLAN GEO, LEO Satellites • Advantages of radio access: • potentially low cost • fast deployment • progressive investments • Drawbacks • partial coverage • spectrum availability • lack of standardisation UMTS
Rationale Techno-economics is an on-going concern Advantages of comparison carried out by an independent body with the PNOs direct expertise Targets Update of former results Realistic price of equipment for new technologies Comparison of identified B-ISDN network alternatives Broadband radio evaluation Flexible adaptation of results to local needs Techno-economic evaluation
Some techoeconomic considerations • INITIAL INVESTMENT • What is the cost of bandwidth ? • Are ADSL and HDSL solutions attractive ? • HFC technology is a cheap solution, or not ? • What about the BPON architecture ? • FTTx (but how close to the customer ?) x = ??? • CAPACITY UPGRADE • What is the cost to upgrade ? • What is the financial risk ? $ $ $ $
Time for real deployment focus on practical issues End of a single architecture access network as a combination of technologies, keeping a comprehensive overall network perspective Ability to support the changing needs of Operators there is still opportunity for cooperation in a competitive environment coordinated contribution to standardization bodies techno-economic evaluations The three key messages The challenge of the broadband access network implementation
WHAT AFTER P614 ? Considering that ... A number of advanced access networks are available Interoperability and field operation testing is needed . . P614 proposes ... The creation of a co-ordination platform for lab testing of broadband access equipment, broadband home network technologies, fixed-mobile broadband access network demonstrations co-ordinating these activities with the FSAN actions . . Proposals for WP-1999