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NEWSKY – NEtWorking the SKY for aeronautical communications Michael Schnell, Sandro Scalise German Aerospace Center (DLR) Institute of Communications and Navigation. Outline. State-of-the-Art The NEWSKY Approach Benefits and Challenges Project Overview. State-of-the-Art.

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Outline

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  1. NEWSKY – NEtWorking the SKYfor aeronautical communicationsMichael Schnell, Sandro ScaliseGerman Aerospace Center (DLR)Institute of Communications and Navigation

  2. Outline • State-of-the-Art • The NEWSKY Approach • Benefits and Challenges • Project Overview

  3. State-of-the-Art • Current ATM communications systems in Europe will be completely overloaded within the next 15 years, even if • 8,33 kHz program is extended • VDL Mode 2 is completely deployed (Link 2000+, Cascade) • For passenger communications (APC) a strong market demand on high-rate data transmissions is still expected • Covered mainly by satellite communications • “Re-use“ of satellite capacity for ATM seems possible if technical challenges (security, integrity, QoS) can be solved • Change of paradigms in aeronautical communications is expected • Less ATM voice, more ATM data link communication • Integration of ATM and APC into one framework

  4. Source: Eurocontrol State-of-the-Art

  5. State-of-the-Art • Requirements from ACARE SRA 2020 • Three times more aircraft traffic en-route • Three times increased airport capacity • Nine times improved security • Transparent ATM system • Actions currently undertaken • Europe (EC Projects): ANASTASIA, B-VHF, … • ICAO ACP activities • FCS and FCI jointly developed by FAA and Eurocontrol • Expectation: Several aeronautical communications system for different application areas • Missing: Overall approach, integrated network

  6. The NEWSKY Approach • “Networking the Sky“ = Development of a global, heterogeneous communications network for aeronautical communications • Integration of different communications systems, i.e. ground-based ATM, satellite-based ATM, ATM within airports (A-SMGCS), and ATM between aircraft (ad-hoc network) • Integration of different applications and services – ranging from ATC/ATM over AOC and AAC to APC • Ensuring that safety criticalapplications and services are always served in time with the required Quality of Service (QoS) • Ensuring network security • Goal: Enable aircraft to be included in CDM and SWIM • Similar research in the U.S. on “network enabled operation” • NEWSKY – enabler for the flexible airborne infrastructure!?!

  7. ATM/ATCover Satellite ATM betweenAircraft Ground-based ATM/ATC Ground Network ATM in and around Airports The NEWSKY Approach

  8. The NEWSKY Approach • Detailed NEWSKY work program • Develop framework for ATM network transformation • Identify relevant application scenarios and service requirements • Develop framework for NEWSKY network concept and architecture • Design and evaluate NEWSKY integrated airborne network • Validate NEWSKY integrated airborne network design • Validation using simulations • Validation in laboratory trials • Overall NEWSKY goalIntegration of both different communications systems and different applications into a global, heterogeneous network

  9. Focus of NEWSKY Access Technology INDEPENDENT Layers ADAPTATION Layer Access Technology DEPENDENT Layers The NEWSKY Approach Application Layers Transport Layer Network Layer Access Technology INDEPENDENT Access Technology Dependent Access Technology Dependent Access Technology Dependent Access Technology Dependent Access Technology Dependent GEO Sat. Link (e.g. Aero BGAN) Direct A2G Link (e.g. B-VHF) LEO/MEO Sat. Link (e.g. Galileo II) On-Ground Link (e.g. WiMAX) HAPs Network …

  10. Benefits and Challenges • Benefits of NEWSKYapproach • Increased redundancy, thus, increased availability and reliability • Increased coverage of overall system • Globally optimized network performance by using the right communication link technology at the right place and time • Improved performance and system capacity • Increased overall efficiency • ATM system completely transparent to end users(pilots and controllers) • Modular system concept which enables more simpleintroduction of new technologies • Efficient and flexible utilization of the overallaeronautical frequency spectrum

  11. Benefits and Challenges

  12. Benefits and Challenges • Challenges of NEWSKY approach • Development of basic networking concept comprising • appropriate adaptation layer • routing algorithms • system-level resource management • seamless hand-over techniques • Development of appropriate QoS classesand priority rules to • meet delay requirements of different applications • ensure safety-critical communications • Network security • to ensure secure communication • using authentication, encryption, integrity information

  13. Project Overview • EC Project (STREP) within DG TREN • Status: Contract preparation • Envisaged starting date: 01.01.2007 • Duration: 30 months • Man-power effort: 250 PM • Total financial volume: 3.6 M€ • Refunded by EC: 2.1 M€ • Feasibility study on networking and interoperability between different ATC/ATM communications systems

  14. Project Overview • Project partners and involved countries • Germany: • German Aerospace Center – DLR (prime) • TriaGnoSys GmbH • Deutsche Flugsicherung GmbH (DFS) • Austria: • University of Salzburg • Frequentis GmbH • France: • Alcatel Alenia Space • Great Britain: • QinetiQ Ltd

  15. NEWSKY Contacts @ DLR • Michael SchnellHead of Aeronautical Communications GroupE-mail: Michael.Schnell@dlr.deTel. +49 8153 28-2858 Fax. +49 8153 28-1871 • Sandro ScaliseHead of Mobile Satellite Systems GroupE-mail: Sandro.Scalise@dlr.deTel. +49 8153 28-2856 Fax. +49 8153 28-2844

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