Abstract
Scalable on-demand multicast streaming protocols can effectively deliver video objects. For sequential streaming access, scalable streaming protocols can offer the benefits of greatly reduced server and network bandwidth usage. But the scalability of network bandwidth for multicast delivery under the non-sequential streaming access is still unresolved. We use two typical interval access models to analyze the required network bandwidth based on a canonical balance tree. Numerical results show that the required minimum network bandwidth grows at least as square root of request arrival rate for the given network topology, and grows linearly with the client site number given the request rate per client site. In addition, compared with unicast delivery, the scalable protocols can yield a factor of logM improvement in the total server bandwidth where Mis the number of media files [11]. We point that the same improvement can be obtained in the total network bandwidth.
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