Harald Ernst

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In this paper the performance of the DVB-S air interface over the Railroad Satellite Channel (RSC) at Ku-band is investigated. Due to the peculiar channel impairments that characterize the satellite channel in the railway environment, some extensions to the DVB-S air interface as defined in [1] are proposed and analyzed in order to test the resulting link(More)
The rising demand for multimedia services even in hazardous environments, such as space missions and military theatres , and the consequent need of proper internetworking technologies have revealed the performance limits experienced by TCP protocol over long-delay and lossy links and highlighted the importance of the communication features provided by the(More)
— The rising demand for multimedia services even in hazardous environments, such as space missions and military theatres, and the consequent need of proper internetworking technologies have revealed the inapplicability of TCP/IP architectures and highlighted the importance of the communication features provided by the protocol architectures proposed by the(More)
— Transferring data reliably from Mars to Earth stations is becoming an appealing challenge in the design of interplanetary networks. In this view, the use of CCSDS-based protocols along with erasure codes is a promising candidate for mitigating the performance degradation due to large propagation delays and high packet loss rates. Besides, the constraints(More)
— The extension of telecommunication frontiers towards deep space scenarios has opened new horizons in the way of designing network infrastructures and has raised the necessity of developping novel communication paradigms, more suited to this specific environment. Under this view, the exploitation of TCP-based transmission schemes does not offer(More)