Dynamic batching policies for an on-demand video server
Multimedia Systems
Patching: a multicast technique for true video-on-demand services
MULTIMEDIA '98 Proceedings of the sixth ACM international conference on Multimedia
P2Cast: peer-to-peer patching scheme for VoD service
WWW '03 Proceedings of the 12th international conference on World Wide Web
Chaining: A Generalized Batching Technique for Video-On-Demand Systems
ICMCS '97 Proceedings of the 1997 International Conference on Multimedia Computing and Systems
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The main bottleneck for a VOD system is bandwidth of storage or network I/O due to the high bandwidth requirements and long-lived nature of digital video. Patching is one of the most efficient techniques to overcome the bottleneck of the VOD system through the use of multicast scheme. In this paper, we propose a new patching scheme, called P2P proxy patching, for improving the typical patching technique by jointly using the prefix caching and P2P proxy. In our proposed scheme, each client plays a role in a proxy to multicast a regular stream to other clients that request the same video stream. Due to the use of the P2P proxy and the prefix caching, the server bandwidth is required significantly less than that of the typical patching technique. In the performance study, we show that our patching scheme can reduce the server bandwidth requirements compared with the existing patching techniques.