Chapter 8. Enhanced Service Differentiation for Layered Video Multicast


The multicast model was proposed as a method of eliminating unnecessary transmission of duplicate packets across the network backbone. However, applications using multicast typically have QoS requirements that make the multicast problem a challenging one. Our research in multicasting focuses on the integration of DiffServ and multicast.

In this chapter, we present an enhanced network service algorithm for layered video multicast applications for DiffServ networks, which consists of enhanced AQM and hierarchical priority marking.

To address the heterogeneity problem, including things such as receiver bandwidth and receiver capability, layered video (a.k.a., scalable ...

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