KEYWORDS: Video, Digital video discs, Systems modeling, Data modeling, Receivers, Forward error correction, Analytical research, Carbon monoxide, Video coding, Multimedia
An increasingly common feature of a Set Top Box (STB) is that of a Personal/Digital Video Recorder (PVR), which
enables subscribers to record broadcasted content to be viewed at a later time--time-shifting. Currently, subscribers have
the limited choice of watching time-shifted shows either from their own PVRs or from a centralized VoD server that makes
available only the popular shows for time shifted viewing. Our CommunityPVR-a new system that forms a peer-to-peer
network among the STBs and streams recorded content among peer STBs-makes available less popular titles to niche
audiences (the long tail effect) of a community without incurring addtional cost to service providers for servers, bandwidth,
and storage. In this paper, we present an analytical model to investigate how far along the tail of the popularity curve can
be covered by CommunityPVR. Using TV shows ranked by Nielsen Media Research and VoD shows from China Telecom,
our model provides a framework to determine the number of copies of broadcast/VoD content recorded by a community
and the probability that CommunityPVR is able to deliver an on-demand stream of a given show over a DSL network. For
example, CommunityPVR can stream near DVD quality video of the top ranked 5000 shows with 100% probability to a
community of 100K. Unlike a centralized VoD solution, CommunityPVR has the potential to deliver both popular and long
tail content on demand to a service provider's community in a cost-effective manner.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
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.