This paper describes an approach for providing dynamic Quality of Service (QoS) support in a variable bandwidth network, which may include wireless links and mobile nodes.
Dynamic Quality of Service and Adaptive Applications for a Variable Bandwidth Environment
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This paper describes an approach for providing dynamic Quality of Service (QoS) support in a variable bandwidth network, which may include wireless links and mobile nodes. The QoS approach centers on the notion of providing QoS support at some point within a range requested by applications. The applications must be capable of adapting to the level of QoS provided by the network, which may vary during the course of a connection. The paper describes a new protocol called dynamic RSVP (dRSVP) that we have implemented to demonstrate and evaluate the dynamic QoS concept. The protocol and a new application programming interface (API) for this dynamic QoS are described. Finally, we briefly discuss our experience with adaptive streaming video and audio applications that work with the new protocol in a testbed network.