Kendra: Adaptive Audio Delivery over the Internet

The growth in the use of networks for the real-time delivery of continuous media has focused much attention on QoS management techniques. Distributed continuous media applications often need to operate within strict resource requirements if an acceptable level of service is to be maintained, and therefore the need for QoS monitoring and adaptation arises. This paper presents the adaptive audio delivery component of the Kendra distributed multimedia architecture. We describe how QoS monitoring mechanisms drive the reconfiguration of the dynamic protocol architecture, enabling the system to adapt to changes in resource availability and to optimise the performance perceived by the user.