Title :
On the definition, modelling, and implementation of quality of service (QoS) in distributed multimedia systems
Author :
Malamos, A.G. ; Malamas, E.N. ; Varvarigou, T.A. ; Ahuja, S.R.
Author_Institution :
Dept. of Electron. & Comput. Eng., Tech. Univ. of Crete, Chania, Greece
Abstract :
In this paper we introduce a new model for the definition and the implementation of quality of service (QoS) in distributed multimedia systems. The model provides both the users and the provider/manager of the system with a framework for the high level description of the system´s configuration and operation, as well as with an application/user specific definition of QoS. The model maps this high level QoS description to quality requirements for the individual resources that compose the overall service. The implementation of the QoS of the overall service is done by providing probability of availability guarantees for certain levels of QoS. Given some constraints on the total assets available for the implementation of a specific service, the model computes the optimal utilisation of the system resources to implement a specific user/application QoS profile. The model is reduced to a general asset allocation problem (GA2 P) and we solve the GA2P in a provably optimal way for a wide range of realistic services
Keywords :
computer network management; multimedia communication; optimisation; probability; quality of service; GA2P; QoS; QoS management; application/user specific definition; computer networks; distributed multimedia systems; general asset allocation problem; optimal utilisation; probability of availability guarantees; quality of service; quality requirements; specific user/application QoS profile; Application software; Asset management; Computer networks; Distributed computing; Financial management; Humans; Multimedia systems; Quality management; Quality of service; Resource management;
Conference_Titel :
Computers and Communications, 1999. Proceedings. IEEE International Symposium on
Conference_Location :
Red Sea
Print_ISBN :
0-7695-0250-4
DOI :
10.1109/ISCC.1999.780929
