Carl-Herbert Rokitansky

ORCID: 0000-0002-3531-7396
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Power Line Communications and Noise
  • Vehicular Ad Hoc Networks (VANETs)
  • Air Traffic Management and Optimization
  • Wireless Communication Networks Research
  • Mobile Ad Hoc Networks
  • Advanced Wireless Communication Techniques
  • Simulation Techniques and Applications
  • Satellite Communication Systems
  • Meteorological Phenomena and Simulations
  • Cooperative Communication and Network Coding
  • Opportunistic and Delay-Tolerant Networks
  • Human-Automation Interaction and Safety
  • Wireless Networks and Protocols
  • Aerospace and Aviation Technology
  • Network Traffic and Congestion Control
  • UAV Applications and Optimization
  • IPv6, Mobility, Handover, Networks, Security
  • Aviation Industry Analysis and Trends
  • Advanced Wireless Network Optimization
  • Mobile Agent-Based Network Management
  • Wireless Body Area Networks
  • Bluetooth and Wireless Communication Technologies
  • Millimeter-Wave Propagation and Modeling
  • Atmospheric aerosols and clouds
  • PAPR reduction in OFDM

Simulation Technologies (United States)
2024

University of Salzburg
2010-2022

RWTH Aachen University
2000-2007

Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2006

FH Aachen
1994-2002

University of Hagen
1989

In the near future, broadband air-ground (A/G) communications will be used by civil aviation aircraft flying over crowded continental areas such as Europe and North America to access a variety of services, ranging from safety- of-life infotainment applications. This paper investigates feasibility extending this coverage via air-air (A/A) multihop oceanic, remote polar regions, where no infrastructure is available, so that these can ground services without having use an expensive high-delay...

10.1109/sahcn.2008.23 article EN 2008-06-01

The Airborne Internet is a vision of large-scale multihop wireless mesh network consisting commercial passenger aircraft connected via long-range highly directional air-to-air radio links. We propose geographic load sharing strategy to fully exploit the total air-to-ground capacity available at any given time. When forwarding packets for destination, node considers not one but set next-hop candidates and spreads traffic among them based on queue dynamics. In addition, balancing performed...

10.1109/tnet.2011.2175487 article EN IEEE/ACM Transactions on Networking 2011-11-22

Abstract. Volcanic eruptions comprise an important airborne hazard for aviation. Although significant events are rare, e.g. compared to the threat of thunderstorms, they have a very high impact. The current state tools and abilities mitigate aviation hazards associated with assumed volcanic cloud was tested within international demonstration exercise. Experts in field assembled at Schwarzenberg barracks Salzburg, Austria, order simulate sequence procedures case scenario artificial eruption...

10.5194/nhess-20-1719-2020 article EN cc-by Natural hazards and earth system sciences 2020-06-12

Abstract. The purpose of the EUNADICS-AV (European Natural Airborne Disaster Information and Coordination System for Aviation) prototype early warning system (EWS) is to develop combined use harmonised data products from satellite, ground-based in situ instruments produce alerts airborne hazards (volcanic, dust, smoke radionuclide clouds), satisfying requirement aviation air traffic management (ATM) stakeholders (https://cordis.europa.eu/project/id/723986, last access: 5 November 2021)....

10.5194/nhess-21-3367-2021 article EN cc-by Natural hazards and earth system sciences 2021-11-10

Abstract. High-quality volcanic ash forecasts are crucial to minimize the economic impact of hazards on air traffic. Decision-making is usually based numerical dispersion modelling with only one model realization. Given inherent uncertainty such an approach, a multi-model multi-source term ensemble has been designed and evaluated for Eyjafjallajökull eruption in May 2010. Its use flight planning discussed. Two ensembles were built: first output four models their own implementation ejection....

10.5194/nhess-21-2973-2021 article EN cc-by Natural hazards and earth system sciences 2021-10-05

The Broadband Aeronautical Multi-carrier Communications (B-AMC) system is a candidate for future aeronautical communications to be operated in the L-Band (960-1164 MHz). It based on Broadband-VHF (B-VHF) recently developed VHF band. As conditions significantly differ from those band, basic physical layer parameters had adapted, which turn required re-design of higher layers as well. B-AMC offers air/ground (A/G) well direct air/air (A/A) communication capabilities without ground relay. has...

10.1109/dasc.2007.4391914 article EN 2011 IEEE/AIAA 30th Digital Avionics Systems Conference 2007-10-01

The Airborne Internet is envisioned to be a large scale multihop wireless mesh network of civil aviation aircraft connected via long range highly directional air-to-air radio links. We propose novel geographic load share routing metric mitigate congestion in this network, taking into account the underlying link scheduling constraints with antennas. When forwarding packets for given destination, node considers not one but set next hop candidates, and spreads traffic among them based on queue...

10.1109/icnsurv.2010.5503320 article EN 2010-05-01

The Airborne Internet is envisioned to be a large scale multihop wireless mesh network of commercial passenger aircraft connected via long range highly directional air-to-air radio links. We propose localized geographic load sharing technique mitigate congestion in this network, taking into account the underlying link scheduling constraints with antennas. When forwarding packets for given destination, node considers not one but set next hop candidates, and spreads traffic among them based on...

10.1109/icc.2010.5502351 article EN IEEE International Conference on Communications 2010-05-01

Aeronautical ad hoc networks represent a special type of wireless networks, given their significantly larger scale and the distinct characteristics mobile nodes. Aircraft populate international airspace very heterogeneously. Some regions experience highly dense air traffic, with aircraft headings being largely uncorrelated. Other remain only sparsely populated, typically flying parallel to each other. Moreover, number airborne in region changes throughout day. In this paper, we focus on...

10.1109/mahss.2008.4660016 article EN 2008-09-01

The broadband aeronautical multi-carrier communications (B-AMC) system is a promising candidate for the future L-band radio called digital (L-DACS). In this paper, design of physical (PHY) as well data link layer (DLL) addressed. As B-AMC intended to be operated in between two adjacent distance measuring equipment (DME) channels, avoidance mutual interference existing systems and has been focus PHY design. order demonstrate feasibility coexistence with DME, draft frequency planning performed...

10.1109/icnsurv.2008.4559173 article EN Integrated Communications, Navigation and Surveillance Conference 2008-05-01

The VHF COM band currently used for air-ground communications is becoming congested, and the future air traffic management concepts will require much greater use of data than today. wireless communication system discussed in this paper, L-DACS1, considered a candidate purpose. It has been derived from B-AMC, TIA-902 (P34), WiMAX (IEEE 802.16e). presented work, which was performed EUROCONTROL funded study, aimed at developing an initial specification L-DACS1. This shall enable prototyping...

10.1109/icnsurv.2009.5172855 article EN Integrated Communications, Navigation and Surveillance Conference 2009-05-01

The Iris/ARTES 10 programme of the European Space Agency (ESA) aims to develop a satellite system for air traffic services (ATS) and aeronautical operational control (AOC) complementing existing future communications infrastructure. This paper presents approach results Iris communication capacity assessment conducted in first phase programme. discussed within this is based on combination message exchanges defined ldquocommunications operating concept requirements radio systemrdquo document...

10.1109/dasc.2008.4702778 article EN 2011 IEEE/AIAA 30th Digital Avionics Systems Conference 2008-10-01

The Airborne Internet is a vision of large scale multihop wireless mesh network consisting commercial passenger aircraft connected via long range highly directional air-to-air radio links. We propose geographic load sharing strategy to fully exploit the total air-to-ground capacity available at any given time. When forwarding packets for destination, node considers not one but set next hop candidates, and spreads traffic among them based on queue dynamics. In addition, balancing performed...

10.1109/vetecf.2011.6092878 article EN 2011-09-01

The use of satellites for air traffic management purposes offers many benefits the future aeronautical communications infrastructure. Satellites can provide seamless and nearly global coverage over land masses, oceans, remote areas with a reduced terrestrial Research Development new satellite based air-ground data link has been endorsed by EU Transport Council. It is widely shared among stakeholders that this in dense continental airspace requires performance standards, which calls...

10.1109/dasc.2010.5655376 article EN 2010-10-01

A proposal for a communication architecture road transport telematics (RTT) infrastructure networks is presented. First, the technical approach which has been set up to cope with relevant subjects introduced. Then, requirements of RTT applications are considered. Following that, protocol profile defined includes stack vehicle-roadside communications via beacons (DSRC). Thereupon, evaluation and co-operation between fixed network ape discussed. Finally, performance analysis medium access...

10.1109/vetec.1994.345098 article EN 2002-12-17

MobilitY and CollAboRative Work in European Vehicle Emergency NeTworks (MYCAREVENT)1 is an Project of the 6th Framework Program [1]. MYCAREVENT aims to optimize market for automotive services repair. develops implements new applications services, which can be seamlessly securely, accessed using mobile communication. Maintenance situations like car breakdowns or minor failures will happen everywhere. Wherever such unpleasant situation appears, driver needs help advice. The most likely a...

10.1109/iscc.2006.106 article EN 2006-01-01

The aeronautical environment will change significantly in the near future creating an increased need for efficient data communication. Although general trend of expected transformation is predictable, details are subject to highly dynamic changes. Consequently simulations within this have be able reflect alternating requirements. By application service oriented architecture concepts a simulation suite robust against changing requirements has been developed. It intention our work achieve...

10.1145/1400713.1400746 article EN 2008-04-14

B-VHF is a proposal for future aeronautical communication system in the very high frequency (VHF) band based on an overlay concept, i.e. during transition phase shares same with legacy VHF systems without interfering them. In this paper, feasibility of concept evaluated by simulations physical and higher layers as well laboratory measurements demonstrator. Simulation results show that works presence interference from systems. The protocol designed to allow using available resources...

10.1109/aero.2007.352971 article EN IEEE Aerospace Conference 2007-01-01

The expected evolution of aircraft traffic in the next decades and foreseen lack communication resources European airspace produce an increased need for efficient data communications. Up to now general trend has been implementation new links optimization existing resources. However, main goal NEWSKY is integrate different technologies into a global IP based aeronautical inter-network approach tries achieve improved capabilities through network centric service oriented architecture. In order...

10.1109/dasc.2007.4391905 article EN 2011 IEEE/AIAA 30th Digital Avionics Systems Conference 2007-10-01

This paper provides an overview of the activities performed by Thales Alenia Space Italy (TAS-I) to evaluate system capacity required for a satellite support Future Railway Mobile Communication System (FRMCS) service in Europe. Georeferenced railway communication traffic, emulated Paris Lodron University Salzburg (PLUS) starting from FRMCS use cases and transportation databases, has been fed into software tool developed in-house implementing evaluation algorithms. Multiple scenarios, based...

10.1109/vtc2022-spring54318.2022.9860366 article EN 2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring) 2022-06-01

Future initiatives on enhancing the current air traffic management (ATM) system aim at integration of various communication systems enabling network centric operations. Therefore, reliable protocols and capable have to be provided in order realize eager goals programs like SESAR NextGen. Theoretically there are several possibilities where place protocol but a main idea future aeronautical is use commercial shelf products (COTS). Thus, as it seems, remains only single candidate protocol,...

10.1109/icnsurv.2009.5172854 article EN Integrated Communications, Navigation and Surveillance Conference 2009-05-01

The TCP protocol has been selected as the transport layer of ATN/IPS. However, there are multiple known deficiencies when operating over ldquolong thin networksrdquo. In this paper we discuss several well-known optimization techniques and their application to aeronautical data traffic. performance is evaluated analyzed in a simulated environment based on COCR report.

10.1109/dasc.2009.5347504 article EN 2011 IEEE/AIAA 30th Digital Avionics Systems Conference 2009-10-01

B-VHF is a proposal for future aeronautical communication system in the VHF band based on an overlay concept, i.e. during transition phase shares same frequency with legacy systems without interfering them. In this paper, concept evaluated by simulations of physical and higher layers. Simulation results show that works presence interference from systems. The protocol designed to allow using available resources very efficiently provide voice data services required quality service

10.1109/dasc.2006.313670 article EN 2011 IEEE/AIAA 30th Digital Avionics Systems Conference 2006-10-01

The internet protocol version 6 (IPv6) is the intended network for future ATN. In order to fully benefit from IP security capabilities it important understand various mechanisms and environment in which they will operate. This paper discusses conditions of aeronautical communication analyzes relevant issues a generic way. More concrete considerations are given second part where threats (in terms security) vision NEWSKY briefly discussed IPv6 service introduced.

10.1109/dasc.2008.4702790 article EN 2011 IEEE/AIAA 30th Digital Avionics Systems Conference 2008-10-01
Coming Soon ...