QOSME: QOS management environment
QOSME: QOS management environment
Heterogeneous Network Quality of Service Systems
Heterogeneous Network Quality of Service Systems
Specification, Mapping and Control for QoS Adaptation
Real-Time Systems
On QOS Mapping in Multimedia Networks
COMPSAC '97 Proceedings of the 21st International Computer Software and Applications Conference
QuO's runtime support for quality of service in distributed objects
Middleware '98 Proceedings of the IFIP International Conference on Distributed Systems Platforms and Open Distributed Processing
NQSL - Formal Language and Tool Support for Network Quality-of-Service Requirements
FORTE '08 Proceedings of the 28th IFIP WG 6.1 international conference on Formal Techniques for Networked and Distributed Systems
| Hi-index | 0.00 |
The provision of network Quality-of-Service(network QoS) is a major challenge in the development of future communication systems. Before designing and implementing these systems, the network QoS requirements are to be specified. Existing approaches to the specification of network QoS requirements are mainly focused on specific domains or individual system layers. In this paper, we present a holistic, comprehensive formalization of network QoS requirements, across layers. QoS requirements are specified on each layer by defining QoS domain, consisting of QoS performance, reliability, and guarantee, and QoS scalability, with utility and cost functions. Furthermore, we derive preorders on multi-dimensional QoS domains, and present criteria to reduce these domains, leading to a manageable subset of QoS values that is sufficient for system design and implementation. The relationship between layers is formalized by two kinds of QoS mappings. QoS domain mappings associate QoS domains of two abstraction levels. QoS scalability mappings associate utility and cost functions of two abstraction levels. We illustrate our approach by examples from the case study Wireless Video Transmission.