Layered video delivery from multiple servers

Y. H. Tan; J. Y. Tham; H. Palit; X. Li

doi:10.1117/12.740078

10 September 2007 Layered video delivery from multiple servers

Y. H. Tan, J. Y. Tham, H. Palit, X. Li

Proceedings Volume 6777, Multimedia Systems and Applications X; 677706 (2007) https://doi.org/10.1117/12.740078
Event: Optics East, 2007, Boston, MA, United States

Abstract

In this paper, we consider the delivery of layered video from parallel heterogenous servers within a video-on-demand infrastruture. A parallel server architecture enables the service of requests by more than one server, thus reducing load at individual servers and dispersing network load. Serving requests for a single video through all or a subset of servers in the system reduces the probability of server overload brought about by a large number of requests for popular content; more clients may also be admitted for the retrieval of video data. Delivery through multiple servers requires that the video data be partitioned. Ideally, the data should be partitioned such that multiple server retrieval provides the same download and access time performance possible when retrieving from a single server of the same total bandwidth. We design and analyse play-while-retrieve strategies that involve streaming layers from different servers and show how access time can be reduced through these strategies. While system wide data striping can completely remove the problem of hotspotting, the method does not scale well and problems may be encountered when the system grow in size or when heterogenous disks have to be used. Since our proposed scheme takes into consideration heterogenous upload bandwidth and layer bitrates, it may be suitable for a peer to peer network where peer upload bandwidth is limited and varied.

Citation Download Citation

Y. H. Tan, J. Y. Tham, H. Palit, and X. Li "Layered video delivery from multiple servers", Proc. SPIE 6777, Multimedia Systems and Applications X, 677706 (10 September 2007); https://doi.org/10.1117/12.740078

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available