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Keynote lectures are plenary sessions which are scheduled for taking about 45 minutes + 10 minutes for questions. |
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| - Franco Davoli, University of Genoa, Italy |
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| Keynote Lecture 1 |
| Cross-Layer Resource Allocation in Satellite Networks |
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Franco Davoli
University of Genoa, Italy |
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Brief Bio:
Franco Davoli received the "laurea" degree in Electronic
Engineering in 1975 from the University of Genoa, Italy. Since 1990 he has been Full
Professor of Telecommunication Networks at the University of Genoa, where he is with the
Department of Communications, Computer and Systems Science (DIST). From 1989 to 1991
and from 1993 to 1996 he was also with the University of Parma, Italy. His current research
interests are in bandwidth allocation, admission control and routing in multiservice networks,
wireless mobile and satellite networks and multimedia communications and services. He has
co-authored over 250 scientific publications in international journals, book chapters and
conference proceedings. He is a member of the Editorial Board of the International Journal of
Communication Systems (Wiley) and of the international journal Studies in Informatics and
Control, and an Area Editor of Simulation – Transactions of the SCS. He has been a guest coeditor
of two Special Issues of the European Transactions on Telecommunications and of a
Special Issue of the International Journal of Communication Systems. In 2004, he has been
the recipient of an Erskine Fellowship from the University of Canterbury, Christchurch, New
Zealand, as Visiting Professor. He has been Principal Investigator in a large number of
projects and has served in several positions in the Italian National Consortium for
Telecommunications (CNIT). He was the Head of the CNIT National Laboratory for
Multimedia Communications in Naples in the years 2004-2005. He is currently Vice-
President of the CNIT Management Board and coordinates the participation of the
Consortium in the SatNEx European Network of Excellence (NoE) and in two other European
projects, devoted to Grid infrastructures for measurement and laboratory instrumentation.
With DIST, he is currently participating in the INTERMEDIA NoE, focused on home
multimedia networking. He is a Senior Member of the IEEE. |
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Abstract:
In wireless networks, the efficient allocation of potentially scarce resources, like
bandwidth and energy, has led to the development of numerous techniques, which
attempt to optimize performance, by explicitly considering the interaction across
different layer of the protocol stack. By taking into account the presence and the
effect of other layers in the design phase of control schemes that act with a certain
protocol, a more efficient use of resources can be often obtained.
This talk presents an overview of different Cross Layer Radio Resource Management
techniques, devoted to dynamic bandwidth allocation in satellite networks, whose
interactions span the physical, data link, network and transport layers, in various
combinations. A multi-service environment is considered, in the presence of
variations in both traffic and channel conditions. At the physical layer, ACM
(Adaptive Coding and Modulation) is adopted as fade countermeasure, and its effect
on the higher layers is modeled as a bandwidth reduction. Traffic models and
methodologies for dynamic bandwidth allocation and performance optimization will
be discussed. A few numerical examples will be presented to highlight
throughput/fairness tradeoffs for long-lived TCP connections that share multiple
channels with different fading depth.
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