Performance analysis of distributed video-on-demand (VoD) systems

被引：1
|
作者：
Jain M. [1 ,3 ]
Priya K. [2 ]
机构：
[1] Department of Mathematics, Institute of Basic Science, Dr. B.R. Ambedkar University
[2] Department of Mathematics, Institute of Advanced Management and Research, Duhai, Ghaziabad, 9th KM Stone, Delhi-Meerut Road
[3] Department of Mathematics, Indian Institute of Technology, Roorkee
来源：
International Journal of Information and Communication Technology | 2010年 / 2卷 / 03期
关键词：
Heterogeneous servers; Hysteric queue; matrix geometric; Neuro-fuzzy systems; Queue size; Video-on-demand; VoD;
D O I：
10.1504/IJICT.2010.032413
中图分类号：
学科分类号：
摘要：
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. Copyright © 2010 Inderscience Enterprises Ltd.
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页码：260 / 278
页数：18
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