The Universal Mobile Telecommunication System
IEEE Communications Magazine
A layered protocol architecture for multimedia wireless-PCS networks
Mobile Networks and Applications - Special issue: mobile multimedia communications
Admission control with priorities: approaces for multi-rate wireless system
Mobile Networks and Applications
Dynamic Channel Allocation for Real-Time Connections in Highway Macrocellular Networks
Wireless Personal Communications: An International Journal
Frequency allocation problems for linear cellular networks
ISAAC'06 Proceedings of the 17th international conference on Algorithms and Computation
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It is not an easy task in UMTS environment to effectively design the transport and the management of trafic belonging to Multimedia Teleservices, due to the hard communication requirements of such applications. In this paper it is proposed to contemporary use at the "transport" layer of the system several bearers, one for each traffic component of the multimedia service. Furthermore, a two-level (static and dynamic) priority mechanism is proposed to be adopted by the higher protocol levels of UMTS for the adaptation of call set-up, channel access, and admission control procedures to the nature of the multimedia services and to optimise the sharing of radio channel resources and the management of the reservation buger. Achieved results demonstrate that the proposed mechanism shows good performance especially during periods in which the system traffic load is high and well reacts to the worsening of multimedia service quality, both in terms of information loss and synchronisation of its traffic components.