Hybrid chaining scheme for video-on-demand applications based on popularity

  • Authors:

  • R. Roopalakshmi;R. Ashok Kumar

  • Affiliations:

  • Department of ISE, B.M.S college of Engineering, Bangalore, India;Department of ISE, B.M.S college of Engineering, Bangalore, India

  • Venue:
  • AIC'08 Proceedings of the 8th conference on Applied informatics and communications
  • Year:
  • 2008

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Abstract

A true Video-on-Demand (VoD) service, specifies the transmission of a dedicated video stream from a video server to the subscribed user. In proxy assisted transmission schemes, although it reduces load on server and increases network efficiency, but when scalability of network increases, server faces significant efficiency degradations. In this paper, we propose a new popularity based chaining approach, which allows the clients to serve video streams to other clients, by means of unicasting. In this way more clients can be chained together. This hybrid scheme results in: (1) Increase in servicing capability of a proxy server, (2) Makes good use of clients uplink bandwidth. (3) Optimum utilization of proxy server resources and also (4) To provide fast and better video streaming service. Our simulation results show that, the utilization of proxy server resources using proposed hybrid scheme are much lower than those of existing chaining scheme. This hybrid scheme is easily deployable and cost - effective, in terms of minimizing the rejection rate of movie requests.