Spectral Efficient COMmunications for future Aeronautical Services Jan

Spectral Efficient COMmunications for future Aeronautical Services Jan Erik Håkegård jan. e. hakegard@sintef. no ONERA, Toulouse, France, 6. November 2007 ICT

Outline n Background ATM/aeronautical communications n Why did we propose a project on ATM/aeronautical communications? n The SECOMAS project n Partners n Objectives n Activities ONERA, Toulouse, France, 6. November 2007 ICT 2

Why are new ATM systems necessary? n Traffic in 2005 n 9. 2 million flights per year n Peak day n n n 30 000 flights by commercial airlines 200 000 flights by general aviation aircraft Numerous military aircraft n Estimated traffic in 2025 n 22 million flights per year n Peak day n n n 72 000 flights by commercial airlines 480 000 flights by general aviation aircraft Numerous military aircraft Source: Expectations of SESAR, Bernard Miaillier, D 1 Forum Increase by factor 2. 4 Today’s Air Traffic Management (ATM) systems are not capable to support this increase ONERA, Toulouse, France, 6. November 2007 ICT 3

What is the impact on the communication systems? n Bandwidth congestion n Primarily in the VHF band n High density airspace (e. g. Continental Europe) n Solutions: n Increase spectrum efficiency in the VHF band (8. 33 k. Hz channels) n Migrate from voice communication to data communication (VDL 2/3/4) n Open new frequency bands for aeronautical communication (WRC-07) n VHF band: 108 -118 MHz (no system proposed) n L-band: Portions within the 960 -1164 MHz (L-DACS 1/2/(3)) n C-band: Portions within the 5000 -5150 MHz (IEEE 802. 16 aero) n Develop a satellite component for ATM n ARTES-10 ONERA, Toulouse, France, 6. November 2007 ICT 4

L-band Digital Aeronautical Communication System (L-DACS) n Future Communication Study (Eurocontrol/FAA) n Two alternative solutions LDACS-1 and LDACS-2 Options Access Scheme Modulation Type Origins L-DACS 1 FDD OFDM B-AMC, P 34 L-DACS 2 TDD CPFSK/GMSK LDL, AMACS n Conclusions presented to ICAO in October 2007 n Decision on one system to be taken in 2009 n Deployment in 2020 ONERA, Toulouse, France, 6. November 2007 ICT 5

C-band Airport communications n Develop an aeronautical Mobile Wi. MAX standard (IEEE 802. 16 aero) n Identify the portions of the IEEE 802. 16 e standard best suited n Identify and develop missing required functionalities n Evaluate and validate the performance through trials and test bed development n Propose an aviation specific standard ONERA, Toulouse, France, 6. November 2007 ICT 6

Satellite component n Two ARTES-10 (ESA) studies (K. O. Dec 2007) n Communication System Design n Analysis and Definition of Satellite System n Objectives n Preparation work to support the SESAR Master Plan n Must be coherent in time and content with the SESAR program n Support frequency allocations n Consider non-technical issues from the start n Define ancillary payload ONERA, Toulouse, France, 6. November 2007 ICT 7

Issues regarding satellite coverage in northern regions “The High North will be Norway’s most important strategic priority area in the years ahead. “ -Norwegian Ministry of Foreign Affairs n Large n 6 x land area n Mainly inhabited n A few islands n Economically important n Oil and gas n Fish n Shipping n Strategically important n Satellite coverage important ONERA, Toulouse, France, 6. November 2007 ICT 8

Coverage GEO satellites ONERA, Toulouse, France, 6. November 2007 ICT 9

Highly elliptical orbits (HEO) Molniya and Tundra ONERA, Toulouse, France, 6. November 2007 ICT 10

SECOMAS project n Knowledge-building project n 2007 -2010 n Working partners: n SINTEF n NTNU (The University in Trondheim) n Financial partners: n n n Norwegian Research Council Avinor (The Norwegian ANSP) Jotron Kongsberg Defence Communications Park Air Systems Thales Norway ONERA, Toulouse, France, 6. November 2007 ICT 11

SECOMAS objective n Explore spectrum efficient wireless communications n Meeting req. of future aeronautical comm. services at large n Including: n Links: Air-ground, air-air, satellite n Services: ATS, AOC/AAC, APS ONERA, Toulouse, France, 6. November 2007 ICT 12

SECOMAS activities n Industrial path (SINTEF) n Airport (IEEE 802. 16 e) n n n Analytical approach Simulations (Validation through measurements) n Satellite component n n ARTES-10 Northern area coverage n Heterogeneous networks n Distribute traffic among various network options, respecting the services’ Qo. S requirements n Theoretical path (NTNU) n MIMO, ST-coding n Link adaptation n Cooperative and opportunistic n n transmission Advanced channel coding Multi-carrier transmission (e. g. OFDM) Networking concepts Cross-layer design ONERA, Toulouse, France, 6. November 2007 ICT 13

SECOMAS impact n Play a role in the development of future aeronautical communications n Get involved in international activities (SESAR, EC FP 7, ARTES-10) n Academic results n Ph. D. student, scientific publications n Lead to development projects in cooperation with industry ONERA, Toulouse, France, 6. November 2007 ICT 14

Thank you for your attention ! ONERA, Toulouse, France, 6. November 2007 ICT 15