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Abstract
Multimedia satellite systems are viewed as viable service vehicles for traditional entertainment broadcasting. They are also potential supplements for the existing wire-line and legacy networks in meeting the increasing demand for Internet and multimedia oriented broadband access at demographically dispersed areas.
The main objective of this work is the comparison of a new Connection Admission Control (CAC) algorithm that guarantees an elevated multiplexing level and also a good quality of service to real-time multimedia traffic sources mapped over DVB-RCS standard service classes with a well-known Iterative CAC mainly designed for the managing of real-time bursty traffic sources. Simulation results show that the performances of the proposed CAC, compared with the previous one, are the same but the last one has a very low computational complexity. In particular, the proposed scheme is based on a few elementary sums and products operations and has a linear computational complexity while the reference algorithm presents a quadratic one. Both algorithms guarantee the agreed QoS to real-time bursty connections that are more sensitive to delay jitter but the proposed one can manage also real-time multimedia traffic sources with high interactivity data level.
Additional information
Notes on contributors
Gianluca Aloi
Gianluca Aloi received the MS degree in computer engineering from University of Calabria, Italy in 1999 and the PhD degree from the University of Calabria, Italy, in 2003. Currently, he is Assistant Professor at the University of Calabria where, since 1999, he works with the telecommunications research group and he is involved in several projects concerning wireless communications. His research interests include enhanced Wireless and Satellite systems, Mobility, Traffic and Resource Management, QoS support in heterogeneous communications networks and interworking of wireless and wired networks.
Pasquale Pace
Pasquale Pace received the master degree in computer engineering from University of Calabria, Italy in 2000. Since early 2001, he has been with the telecommunications research group of the University of Calabria where he is fully involved in a number of projects concerning the multimedia wireless communications. Currently he is a PhD student and his research interests include Multimedia Satellite Systems, DVB-RCS-Satellite architectures, IP-Satellite, Mobility Management, Traffic & Resource Management, Call Admission Control and integration of Satellite Systems and High Altitude Platforms in heterogeneous communications networks.
Salvatore Marano
Salvatore Marano graduated in electronics engineering at the University of Rome in 1973. In 1974 he joined the Fondazione Ugo Bordoni. Between 1976 and 1977 he worked at the ITT laboratory in Leeds, UK. Since 1979 he has been an Associate Professor of “Comunicazioni Elettriche” at the University of Calabria, Italy. His research interests include performance evaluation in mobile communication systems.