Improvement of L-DACS1 design by combining B-AMC with P34 and WiMAX technologies

Haindl, Bernhard; Rihacek, C.; Sajatovic, M.; Phillips, Brent; Budinger, James M.; Schnell, Michael; Lamiano, Dean F.; Wilson, Warren J.

doi:10.1109/icnsurv.2009.5172873

Cited by 9 publications

(5 citation statements)

References 1 publication

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“…The realized LDACS has its origin in merging parts of the B-VHF [3], B-AMC [24], [27], TIA-902 (P34) [16], and WiMAX IEEE 802.16e technologies [6]. In 2007 the spectrum for LDACS was allocated at the World Radio Conference (WRC).…”

Section: A System Characteristicsmentioning

confidence: 99%

Evaluation of the LDACS Cybersecurity Implementation

Mäurer

Gräupl

Schmitt

2019

2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)

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Communication, Navigation and Surveillance (CNS) infrastructure in civil aviation must evolve as fast as possible to cope with all challenges posed by the growth of the worldwide population, globalization and the demand for more and more mobility worldwide. Analogue systems are replaced by digital means, automation is becoming much more important to handle new entrants in the air traffic system, spectrum saturation must be solved by introducing digital systems and the safety and security of the safety critical infrastructure surrounding civil aviation must be constantly updated to support the ever-growing complexity of the system. As one of the Future Communication Infrastructure (FCI) candidates we introduce LDACS as the very first true integrated CNS system worldwide. In previous works we have already analyzed its cybersecurity and developed an architecture with corresponding algorithm and proofed the improvement of the cybersecurity due to our security additions. Here we implement the LDACS cybersecurity architecture and evaluate the impact of introduced security overhead on the LDACS system. We conclude that the proposed protection mechanisms successfully mitigate previously identified risks and only add minor time, data and computation overhead on top of the LDACS protocol stack, making the security solutions a good candidate to be included in the SESAR wave 2 updated LDACS specification.

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Section: A System Characteristicsmentioning

confidence: 99%

Evaluation of the LDACS Cybersecurity Implementation

Mäurer

Gräupl

Schmitt

2019

2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)

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“…Using B-AMC (Broadband Aeronautical Multicarrier Communications System) [3] as baseline design, L-DACS1 resulted from combining B-AMC with the TIA-902 (P34) and the IEEE 802.16e (WiMAX) standards [4]. The B-AMC design resulted from a Eurocontrol funded study on exploring the feasibility of an OFDM-based inlay system for aeronautical communications in L-band.…”

Section: Brief L-dacs1 Reviewmentioning

confidence: 99%

L-DACS1 laboratory demonstrator development and compatibility measurement set-up

Schnell

Franzen

Gligorevic

2010

29th Digital Avionics Systems Conference

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In this paper, the L-DACS1 physical layer laboratory demonstrator development is described which has been recently carried out by the German Aerospace Center (DLR). The main goal of the lab demonstrator is to perform first compatibility measurements between L-DACS1 and legacy L-band systems where interference from L-DACS1 towards the legacy systems as well as interference from the legacy systems onto the L-DACS1 receiver is considered. In addition to the demonstrator description, results from functional tests of the lab demonstrator as well as the measurement scenarios foreseen for compatibility testing are presented. The compatibility measurements will take place at the labs of the Deutsche Flugsicherung GmbH (DFS) -the German ATC provider -in fall this year.

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“…Probably the most influential external input 4 to the LDACS1 design came from the TIA-902 P34 standard. The message formats of the medium access layer and the addressing scheme were directly derived from this system (Haindl et al, 2009). The concept of OFDM tiles and FL and RL allocation maps was adopted from the WiMAX standard.…”

Section: Input From Other Systemsmentioning

confidence: 99%

The LDACS1 Link Layer Design

Gräupl¹,

Ehammer²

2011

Future Aeronautical Communications

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Future Aeronautical Communications 292 puts a considerable workload on the human controller the air traffic cannot be increased arbitrarily without compromising the safety of the system. This situation is made worse by the fact that the radio spectrum dedicated to aeronautical voice communication is becoming increasingly saturated i.e. even if the human controllers could cope with more air traffic safely, there would not be enough voice frequencies to do so. Excessive controller workload and voice frequency depletion are therefore the main technical problems of the current air traffic control system. The introduction of advanced Air Traffic Management (ATM) procedures and automated support tools will significantly decrease the controller workload. However, advanced ATM r e q u i r e s a i r c r a f t t o b e e q u i p p e d w i t h a c c u rate position determination and collision avoidance equipment as well as data communications to integrate them into the ATM, System Wide Information Management (SWIM) and Collaborative Decision Making (CDM) processes (Helfrick, 2007). Data communications is required as ATM transfers parts of the decision making from air traffic controllers to cockpit crews supported by automated procedures and algorithms (e.g. self-separation). The aircrews must now be provided with timely, accurate, and sufficient data to gain the situational awareness necessary to effectively collaborate in the collaborative decision making process of ATM. This requires the availability of sufficiently capable data links. However, the data link solutions available today cannot provide the capacity and quality of service required for the envisaged system wide information management (Eleventh Air Navigation Conference, 2003). Improved air-ground communication has therefore been identified as one key enabler in the transformation of the current air transportation system to an ATM based Single European Sky.

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Improvement of L-DACS1 design by combining B-AMC with P34 and WiMAX technologies

Cited by 9 publications

References 1 publication

Evaluation of the LDACS Cybersecurity Implementation

Evaluation of the LDACS Cybersecurity Implementation

L-DACS1 laboratory demonstrator development and compatibility measurement set-up

The LDACS1 Link Layer Design

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