ict onera, toulouse, france, 6. november 2007 spectral efficient communications for future...

ICTONERA, Toulouse, France, 6. November 2007

Spectral Efficient COMmunications for future Aeronautical Services

Jan Erik Håkegård

[email protected]

2ICTONERA, Toulouse, France, 6. November 2007

Outline

Background ATM/aeronautical communications Why did we propose a project on ATM/aeronautical

communications?

The SECOMAS project Partners Objectives Activities


Increase by factor 2.4Today’s Air Traffic Management (ATM) systems are not capable to support this increase

Why are new ATM systems necessary?

Traffic in 2005 9.2 million flights per year Peak day

30 000 flights by commercial airlines 200 000 flights by general aviation

aircraft Numerous military aircraft

Estimated traffic in 2025 22 million flights per year Peak day

72 000 flights by commercial airlines 480 000 flights by general aviation

aircraft Numerous military aircraft

Source: Expectations of SESAR, Bernard Miaillier, D1 Forum


What is the impact on the communication systems?

Bandwidth congestion Primarily in the VHF band High density airspace (e.g. Continental Europe)

Solutions: Increase spectrum efficiency in the VHF band (8.33 kHz channels) Migrate from voice communication to data communication (VDL 2/3/4) Open new frequency bands for aeronautical communication (WRC-07)

VHF band: 108-118 MHz (no system proposed) L-band: Portions within the 960-1164 MHz (L-DACS1/2/(3)) C-band: Portions within the 5000-5150 MHz (IEEE802.16aero)

Develop a satellite component for ATM ARTES-10


L-band Digital Aeronautical Communication System (L-DACS)

Future Communication Study (Eurocontrol/FAA) Two alternative solutions LDACS-1 and LDACS-2

Conclusions presented to ICAO in October 2007 Decision on one system to be taken in 2009 Deployment in 2020

Options Access

Scheme

Modulation

Type

Origins

L-DACS 1 FDD OFDM B-AMC, P34

L-DACS 2 TDD CPFSK/GMSK LDL, AMACS


C-bandAirport communications

Develop an aeronautical Mobile WiMAX standard (IEEE802.16aero)

Identify the portions of the IEEE 802.16e standard best suited

Identify and develop missing required functionalities

Evaluate and validate the performance through trials and test bed development

Propose an aviation specific standard


Satellite component

Two ARTES-10 (ESA) studies (K.O. Dec 2007) Communication System Design Analysis and Definition of Satellite System

Objectives Preparation work to support the SESAR Master Plan

Must be coherent in time and content with the SESAR program Support frequency

allocations Consider non-technical

issues from the start Define ancillary payload


Issues regarding satellite coverage in northern regions

Large 6 x land area

Mainly inhabited A few islands

Economically important Oil and gas Fish Shipping

Strategically important

Satellite coverage important

“The High North will be Norway’s most important strategic priority area in the years ahead. “

-Norwegian Ministry of Foreign Affairs


Coverage GEO satellites


Highly elliptical orbits (HEO)Molniya and Tundra


SECOMAS project

Knowledge-building project 2007-2010

Working partners: SINTEF NTNU (The University in Trondheim)

Financial partners: Norwegian Research Council Avinor (The Norwegian ANSP) Jotron Kongsberg Defence Communications Park Air Systems Thales Norway


SECOMAS objective

Explore spectrum efficient wireless communications

Meeting req. of future aeronautical comm. services at large

Including: Links: Air-ground, air-air, satellite Services: ATS, AOC/AAC, APS


SECOMAS activities

Theoretical path (NTNU) MIMO, ST-coding Link adaptation Cooperative and opportunistic

transmission Advanced channel coding Multi-carrier transmission (e.g.

OFDM) Networking concepts Cross-layer design

Industrial path (SINTEF) Airport (IEEE802.16e)

Analytical approach Simulations (Validation through

measurements)

Satellite component ARTES-10 Northern area coverage

Heterogeneous networks Distribute traffic among

various network options, respecting the services’ QoS requirements


SECOMAS impact

Play a role in the development of future aeronautical communications Get involved in international activities (SESAR, EC FP7, ARTES-10)

Academic results Ph.D. student, scientific publications

Lead to development projects in cooperation with industry


Thank you for your attention !

ict onera, toulouse, france, 6. november 2007 spectral efficient communications for future...

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