G. Bochmann and A. Hafid, "Some principles for quality of service management," Universite de Montreal, Tech. Rep., 1996.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....in the presence of environmental changes that affect their running conditions. Adaptation seems to be a particularly promising approach for the management of communication systems with multimedia applications, as these impose challenging computational and timing requirements on resources [voBo 96,deMe 95] But strategic knowledge is required in order to execute adaptation and reconfiguration actions in a most effective manner. It has been argued that quantitative modeling support could provide useful guidelines for required control decisions in this respect [deMe 92,Have 94] Thus, the ....

von Bochmann G. and A. Hafid "Some Principles for Quality of Service Management", Technical Report, Universite de Montreal, (1996).

....include picture quality, or speed of response, as opposed to the fact that a picture was produced, or a response to stimuli occurred. Table 1 shows the main technology based QoS parameters. Basic mathematical models for concatenating throughput, delay, jitter, and frame loss rate are specified in [19, 20]. Table 2 summarizes the main userbased parameters. User level QoS requirements, are described as perceived quality and then mapped to lower level QoS characteristics in [21] Reference [22] describes a selection of quality characterizations in terms of QoS parameters and value ranges, for ....

....The renegotiation of a contract. This is required when the maintenance functions cannot achieve the parameters specified in the contract, usually as a result of major changes or failures in the system. Usually invoked by exceptions raised by the monitoring, policing and maintenance function. [19, 37]. Adaptation The applications adapts to changes in the Application dependent adaptation may be needed after QoS of the system, possibly after renegotiation or if the Qos management functions fail to renegotiation. maintain the specified QoS. Often achieved by media scaling [27, 38, 39] ....

Bochmann, G. v., Hafid, A., Some principles for quality of service management, Distrib. Syst. Engng, vol. 4, pp. 16--27, IOP Publishing, 1997.

....Network QoS parameters are reserved in the ATM and SDH subnetworks, and the QoS parameters are stored in the database. 6. 4 QoS Computation The equations to compute the end to end values of the QoS parameters as defined in section 3 are similar at the inter domain and the intra domain level [8]: PBR[end to end] Min PBR Bandwidth CDVT[end to end] CDVT Delay[end to end] CTD delay log(1 BER[end to end] BER BER MBR[end to end] Min MBR , MBR atm sdh atm sdh atm atm sdh atm sdh , log( log( 1 1 At the intra domain network ....

) G.V. Bochmann, A. Hafid, "Some Principles for Quality of Service Management", Universit de Montral.

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G. v. Bochmann, A. Hafid, "Some Principles for Quality of Service Management", Distributed Systems Engineering Journal, 4:16-27, 1997.

....that stores the multimedia documents. The latter is included because our distributed database system provides support for different variants of audio or video objects each may be at a different resolution, and stored in a different server. The negotiation is performed by a QoS management module [22]. 5.1 QoS Framework A framework for QoS negotiation has been defined which includes all system components such as the client workstation, networks, and servers [22, 9] The global configuration involved in a given instance of an application can be selected based on the user s QoS requirements and ....

.... each may be at a different resolution, and stored in a different server. The negotiation is performed by a QoS management module [22] 5. 1 QoS Framework A framework for QoS negotiation has been defined which includes all system components such as the client workstation, networks, and servers [22, 9]. The global configuration involved in a given instance of an application can be selected based on the user s QoS requirements and the resource availability at the different system components. For access to multimediadocuments, the system may take advantage of the presence of several media ....

G. v. Bochmann and A. Hafid. Some principles for quality of service management. In Proceedings of the Fourth International Workshop on Quality of Service (invited paper). Paris, France, March 1996. Revised version to be published in the Distributed Systems Engineering Journal.

....Quality of presentation depends on the type of data to be displayed. In distributed multimedia systems, interesting work has been conducted to support high quality presentation of multimedia documents respecting the spatial and temporal constraints defined for multimedia documents [Vogel 1995, Bochmann 1997] These presentation constraints induce some performance constraints such as the throughput for the communication network. The quality of the presentation also obviously depends on the quality of the data and more specifically related to the representational DQ category and the concise ....

Bochmann, G. v. and Hafid, A., Some principles for quality of service management, Distributed Systems Engineering Journal 4 (1997), pp.16-27.

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G.V.Bochmann and A.Hafid, Some Principles for Quality of Service Management, IEE Distributed System Engineering Journal, 1997 (to appear)

....4.4 QoS Negotiation and Adaptation The overall goal of QoS negotiation is to optimize the system configuration that can satisfy the users QoS constraints. A framework for QoS negotiation has been defined which includes all system components such as the client workstation, network, and servers [27, 12]. The global configuration involved in a given instance of an application can be selected based on the user s QoS requirements and the resource availability at the different system components. For access to multimedia documents, the system may take advantage of the presence of several media ....

G. v. Bochmann and A. Hafid. Some principles for quality of service management. In Proceedings of the Fourth International Workshop on Quality of Service (invited paper). Paris, France, March 1996. Revised version to be published in the Distributed Systems Engineering Journal.

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G. Bochmann and A. Hafid, "Some principles for quality of service management," Universite de Montreal, Tech. Rep., 1996.

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G. Bochmann and A. Hafid. Some Principles for Quality of Service Management. Technical report, Universite de Montreal, 1996.

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G. Bochmann and A. Hafid, "Some Principles for Quality of Service Management," Universite de Montreal, Tech. Rep., 1996.

No context found.

G. Bochmann and A. Hafid, "Some Principles for Quality of Service Management", Distributed Systems Engineering Journal 4 (1997), pp. 16-27.

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G. Bochmann and A. Hafid, "Some Principles for Quality of Service Management", Distributed Systems Engineering Journal 4 (1997), pp. 16-27.

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G.Bochmann and A.Hafid, "Some Principles for Quality of Service Management", Universite de Montreal, May 1996.

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