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Performance model of interactive video-on-demand systems

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4 Author(s)
Li, V.O.K. ; Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA ; Wanjiun Liao ; Xiaoxin Qiu ; Wong, E.W.M.

An interactive video-on-demand (VoD) system allows users to access video services, such as movies, electronic encyclopedia, interactive games, and educational videos from video servers on a broadband network. This paper develops a performance evaluation tool for the system design. In particular, a user activity model is developed to describe the usage of system resources, i.e., network bandwidth and video server usage, by a user as it interacts with the service. In addition, we allow batching of user requests, and the effect of such batching is captured in a batching model. Our proposed queueing model integrates both the user activity and the batching model. This model can be used to determine the requirements of network bandwidth and video server and, hence, the trade-off in communication and storage costs for different system resource configurations

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Selected Areas in Communications, IEEE Journal on  (Volume:14 ,  Issue: 6 )