One of the main challenges of the wireless telecommunication systems which are presently being designed, is an efficient provision of an end-to-end QoS tailored to the specific requirements of each connection. For this purpose, one of the main goals of the European Union IST Research Project VIRTUOUS was the investigation and development of procedures for the QoS support in the UMTS system. This paper deals with the description of the QoS architecture designed for the IST VIRTUOUS system, especially targeting at the design of an efficient UMTS MAC scheduling algorithm that is in charge of managing several parallel active logical channels (i.e. UMTS connections) respecting their relevant QoS constraints. The joined approach to the packet scheduling and Transport Format choice proposed in this paper shows better performances respect to the 3GPP standard solution. The last one gives poor results as the number of connections of different type - i.e. connections with different needs in terms of maximum allowed delay - increases. Furthermore, the innovative MAC design introduced in this paper allows a much better exploitation of the available bandwidth in the UMTS Radio Access Network, increasing also fairness between IP datagrams belonging to different sources.

Multimedia Services with QoS Support in an Integrated Terrestrial and Satellite UMTS Network: The IST VIRTUOUS Project / Del Sorbo, Filomena; DELLI PRISCOLI, Francesco; Giralda, Arnolde; Lombardi, Giuseppe. - STAMPA. - (2003), pp. 29-39. (Intervento presentato al convegno Proceedings of the First International Conference on Advanced Satellite Mobile Systems - ASMS 2003 tenutosi a Frascati; Italy nel 10-11 July 2003).

Multimedia Services with QoS Support in an Integrated Terrestrial and Satellite UMTS Network: The IST VIRTUOUS Project

DELLI PRISCOLI, Francesco;
2003

Abstract

One of the main challenges of the wireless telecommunication systems which are presently being designed, is an efficient provision of an end-to-end QoS tailored to the specific requirements of each connection. For this purpose, one of the main goals of the European Union IST Research Project VIRTUOUS was the investigation and development of procedures for the QoS support in the UMTS system. This paper deals with the description of the QoS architecture designed for the IST VIRTUOUS system, especially targeting at the design of an efficient UMTS MAC scheduling algorithm that is in charge of managing several parallel active logical channels (i.e. UMTS connections) respecting their relevant QoS constraints. The joined approach to the packet scheduling and Transport Format choice proposed in this paper shows better performances respect to the 3GPP standard solution. The last one gives poor results as the number of connections of different type - i.e. connections with different needs in terms of maximum allowed delay - increases. Furthermore, the innovative MAC design introduced in this paper allows a much better exploitation of the available bandwidth in the UMTS Radio Access Network, increasing also fairness between IP datagrams belonging to different sources.
2003
Proceedings of the First International Conference on Advanced Satellite Mobile Systems - ASMS 2003
Aerospace Engineering
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Multimedia Services with QoS Support in an Integrated Terrestrial and Satellite UMTS Network: The IST VIRTUOUS Project / Del Sorbo, Filomena; DELLI PRISCOLI, Francesco; Giralda, Arnolde; Lombardi, Giuseppe. - STAMPA. - (2003), pp. 29-39. (Intervento presentato al convegno Proceedings of the First International Conference on Advanced Satellite Mobile Systems - ASMS 2003 tenutosi a Frascati; Italy nel 10-11 July 2003).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/950970
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