Bearbeiter | (nur für Mitarbeiter:innen einsehbar) |
Betreuer | Prof. Dr.-Ing. Lars Wolf |
Professor | Prof. Dr.-Ing. Lars Wolf |
IBR Gruppe | CM (Prof. Wolf) |
Art | Diplomarbeit |
Status | abgeschlossen |
Beginn | 2006-02-01 |
Motivation and Background The Perspective: Advanced satellite-based aeronautical passenger communications (APC), as soon to be provided from WirelessCabin, inherently bears the potential to boost some improvements in air traffic control (ATC) commu-nications, just because of the sheer appeal of an available infrastructure, equipment, and capacity. The take-up of usage for ATC purposes will start from less safety-critical applications such as crew communications, general airline operational control (AOC), and bi-directional data transfer of supporting air traffic management (ATM) information between cockpit and control centers. While such evolution is just going to happen, effectively shaping the future in this area in some way, it is worthwhile to also formulate a vision and strategic goal, including an overall long-term networking concept and related ideal target system to provide a global satellite ATM component in a dedicated and optimized way. Combining Satellite Communications and Navigation: In the long term, there can be significant benefit from combin-ing advanced satellite communication concepts and networks with a satellite constellation designed for global navi-gation, such as Galileo, in a truly integrated overall system design. Such constellations inherently provide excellent multiple visibility (i.e, "hot" redundancy) and can therefore meet highest availability requirements. This may even contribute to acceptance of such a system solution to provide safety-of-life critical services in the future. Traffic Routing is one key challenge in such an architecture. The characteristics of the heterogeneous topology will directly influence the performances of routing methods under consideration and therefore, will determine the choice of the candidate routing algorithm(s). The envisaged topological nodes comprised in the system are:
As one distinctive backbone component of a global routing architecture, a meshed satellite sub-network based on MEO satellites will be defined and assessed in its performance; while the connections between moving satellites are established by means of intersatellite links (ISLs) which are variable in pointing and distance, a sophisticated MPLS-based overlay network may ensure completely reliable and predictable routing performance over this dynamic space-based backbone topology. This approach is also well suited to support multicast routing approaches which appear to become of major importance in future global ATM networking. The diploma thesis work aims at
The concrete steps to be performed include the following (not preventing adaptations and flexible reaction to lessons learnt while performing the work):
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