Quality of service evaluations of multicast streaming protocols

Recently proposed scalable on-demand streaming protocols have previously been evaluated using a system cost measure termed the "required server bandwidth". For the scalable protocols that provide immediate service to each client when the server is not overloaded, this paper develops simple analytic models to evaluate two client-oriented quality of service metrics, namely (1) the mean client waiting time in systems where clients are willing to wait if a (well-provisioned) server is temporarily overloaded, and (2) the fraction of clients who balk (i.e., leave without receiving their requested media content) in systems where the clients will tolerate no or only very low service delays during a temporary overload. The models include novel approximate MVA techniques that appear to extend the range of applicability of customized AMVA to include questions focussed on state probabilities rather than on mean values, and to systems in which the operating points of interest do not incl...

• Type: Journal
• Year: 2002
• Where: SIGMETRICS
• Authors: Haonan Tan, Derek L. Eager, Mary K. Vernon, Hongfei Guo
• Keywords: Hardware, Mean Wait, Required Server Bandwidth, Server Bandwidth, SIGMETRICS 2002