NDLI: Multicast Video-on-Demand Service in an Enterprise Network with Client-Assisted Patching

Content Provider	IEEE Xplore Digital Library
Author	Farhad, S.M. Akbar, M.M.
Copyright Year	2007
Description	Author affiliation: BUET, Dhaka (Farhad, S.M.; Akbar, M.M.)
Abstract	Multicast video-on-demand (VoD) systems are scalable and cheap-to-operate. In such systems, a single stream is shared by a batch of common user requests. In this research, we adopt multicast communication technique in an enterprise network where multimedia data are stored in distributed servers. We consider batching with patching. Batching incurs service latency but increases the possibility of larger group formation. Patching eliminates this service latency and further improves the performance of multicast communication in VoD systems. However, in conventional patching, each shortly requested client requires a separate server stream to patch the missing portion. We consider a novel patching scheme called client-assisted patching which outperforms conventional patching. Clients' buffer of a multicast group can be used to patch the missing portion of the clients who will request the same movie shortly. The newly admitted client in turn can also provide patching stream to the later client. This scheme significantly reduces the server load without requiring larger client cache space than conventional patching scheme. The conserved server bandwidth can be used to serve more client requests. Simulation experiments show that our scheme is more scalable and cheap-to-operate than conventional patching.
Starting Page	456
Ending Page	459
File Size	159844
Page Count	4
File Format	PDF
ISBN	9781424411894
DOI	10.1109/PACRIM.2007.4313272
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-08-22
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Streaming media Delay Network servers Bandwidth Multicast communication Multimedia communication Broadcasting Scalability Computer science Costs
Content Type	Text
Resource Type	Article

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