Performance analysis of distributed video-on-demand (VoD) systems Online publication date: Fri, 02-Apr-2010
by Madhu Jain, Kriti Priya
International Journal of Information and Communication Technology (IJICT), Vol. 2, No. 3, 2010
Abstract: In this paper, the performance of a distributed video-on-demand (VoD) system with multiple processing nodes is considered. Threshold-based multi-server queuing model with hysteresis is developed for studying the behaviour of the VoD system, wherein the video files are treated as the servers. The copies of video files (replicas) are assumed to be created and removed dynamically from the nodes according to certain thresholds. We provide an analytical solution for the queue size distribution by using the matrix geometric method. Analytical expressions for various performance measures, viz. average number of user-requests in the system, expected number of video-replicas in use, throughput of the VoD system and average delay in the transmission of the file, etc. are obtained. Various performance measures are also evaluated by using adaptive neuro-fuzzy inference systems (ANFIS). Numerical illustrations are provided to validate the analytical results and to compare the analytical and ANFIS results.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Information and Communication Technology (IJICT):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook