Introduction to Quality of Service
Distributed Multimedia Applications
Multimedia Distributed System and Network
AV Requirements: Real-Time and Multimedia
AV Requirements on MM Systems and Networks (1)
AV Requirements on MM Systems and Networks (2)
Result of AV Requirements
Resource Management (Why do we need resource management?)
Window of Resources
Quality of Service (How to parameterize services?)
Layered Model for QoS
Application AV QoS Parameters
Network QoS
Conclusion

Quality of Service (How to parameterize services?)

To manage resources, we need services over resources to schedule AV data, to shape access for AV data, to process AV data, to move AV data, etc. Multimedia systems consist of set of AV-specific services Processing (media-related) services: retrieve audio/video, record video/audio, compress audio/video, fast forward video, rewind video Transport (network) services: Stream video, fast forward video, rewind video To provide multimedia services, services get parameterized with quality levels called Quality of Service QoS parameters versus performance metrics!!