By Topic

Peer Assisted Streaming of Scalable Video via Optimized Distributed Caching

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Harmanci, O. ; DoCoMo USA Labs., Palo Alto, CA ; Kanumuri, S. ; Kozat, U.C. ; Demircin, U.
more authors

In this paper, we propose a method for peer assisted on demand delivery of scalable video using an optimal, distributed caching algorithm for cache constrained peers. We assume that there are one or more content delivery servers that are provisioned to support delivery of the base layer for all of the peers, and the enhancement layer is only supported for a fraction of peers. It has been shown that in such an application, peer assisted content distribution improves the delivery of the content. In this paper, we use peer assisted delivery of the enhancement layer and show that in a cache constrained video-on-demand environment, availability of the cached content becomes a bottleneck. By using peer arrival rates and supply-demand analysis of the peers, we propose better caching policies at each peer. One proposed policy (referred to as "static optimal") optimizes the utility of the currently available caching opportunities. The other proposed policy (referred to as "dynamic programming" solution) on the other hand performs utility optimization by further considering the future caching opportunities during the streaming operation. Experimental results show that the proposed methods allow more peers to access the enhancement layer; hence, more peers experience improved video quality compared to traditional caching methods.

Published in:

Consumer Communications and Networking Conference, 2009. CCNC 2009. 6th IEEE

Date of Conference:

10-13 Jan. 2009