In this paper we address the emerging application of mobility to DVB-RCS systems.

No abstract

No abstract

Satellite payloads are becoming much more complex with the evolution towards multimedia applications. Moreover satellite lifetime increases while standard and services evolve faster, necessitating a hardware platform that can evolves for not developing new systems on each change. The same problem occurs in terrestrial systems like mobile networks and a foreseen solution is the software dejned radio technology. In this paper we describe a way of introducing this concept at satellite level to offer to operators the required jlexihility of the system. The digitalfunctions enabling this technology, the hardware components implementing the functions and the reconjigurution processes are detailed. We show that elements of the software radio for satellites exist and that this concept is feasible.

The use of satellites for air traffic management purposes offers many benefits for the future aeronautical communications infrastructure. Satellites can provide seamless and nearly global coverage over land masses, oceans, and remote areas with a reduced terrestrial infrastructure. Research and Development for a new satellite based air-ground data link has been endorsed by the EU Transport Council. It is widely shared among stakeholders that use of this satellite link in dense continental airspace requires new performance standards, which calls for a new ATMdedicated satellite communication standard and the supporting satellite capacity. This paper provides a characterization of the future data communication traffic profile and derives initial bandwidth estimation for a satellite system providing the service in the ECAC region.

No abstract

The future European Air Traffic Management (ATM) System is currently being defined by the Single European Sky ATM Research (SESAR) Programme. Iris is the European Space Agency (ESA) Programme to develop a new Air-Ground communication system as the satellite-based communication solution for the SESAR Programme. The Iris Programme can be regarded as a specific project within the Work Package 15 (Communication Navigation Surveillance) of the SESAR Development Phase. Iris currently focuses on the design and development of the new satellite communication standard, its associated user terminals, the ground segment, and the end-to-end satellite system design. The design philosophy considers two approaches: a purpose-built system and/or adaptation of Inmarsat's Swift Broadband system. Satellite operators and service providers undertake complementary studies to define operations, service provision scheme, and assess the business case. This paper provides an overview of the scope of the Iris Programme, the activities currently on-going and highlights the key design options under assessment in particular for the design of the satellite communication protocols and the air interface.

No abstract