QoS Filters: Addressing the Heterogeneity Gap
IDMS '96 Proceedings of the European Workshop on Interactive Distributed Multimedia Systems and Services
QoS Adaption and Flow Filtering in ATM Networks
IWACA '94 Proceedings of the Second International Workshop on Multimedia: Advanced Teleservices and High-Speed Communication Architectures
Proceedings of the Third International Workshop on Network and Operating System Support for Digital Audio and Video
NOSSDAV '93 Proceedings of the 4th International Workshop on Network and Operating System Support for Digital Audio and Video
Filters: QoS support mechanisms for multipeer communications
IEEE Journal on Selected Areas in Communications
| Hi-index | 0.00 |
Multimedia group applications often operate in an environment where the various participants are located on systems and communication links with different capabilities. Mechanisms are required that ensure full-quality media for high-performance workstations but lower-quality media for playout at low-end systems. QoS filters have been proposed as a way to adapt QoS to the user specified level by changing the structure of a media stream in a well defined way. Resource reservation and QoS filter instantiation should be closely integrated since both represent one particular aspect of the provision of individualistic QoS for heterogeneous users in multipeer communications. The Internet reservation protocol RSVP is receiver oriented and allows each receiver to specify its resource requirements. However, no actual mechanisms are defined that adapt the data stream to the receiver specified QoS requirements.In this paper we present an enhanced version of RSVP (called RSVP++) that integrates resource reservation and QoS filter control. In order to achieve this integration we extend the RSVP functional model and define a new QoS service class. RSVP++ can coexist with common RSVP systems, thus, openness and interoperability of the system are ensured.