Title :
Video-on-demand server system design with random early migration
Author :
Zhao, Yinqing ; Kuo, C. C Jay
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
A random early migration (REM) scheme is proposed to handle the request migration in a video-on-demand (VoD) server system. When a new request is dispatched to a media server, REM compares the current service load with thresholds and decides whether request migration is needed with a certain probability, which is a function of the service load. We also present an initial video copy allocation algorithm to increase the connectivity degree among video servers to achieve the static load balance. Simulation results demonstrate that REM can achieve an enhanced performance for the VOD system in terms of the service failure rate and the migration cost.
Keywords :
file organisation; video on demand; video servers; DASD dancing algorithm; connectivity degree; initial file allocation algorithm; media server; probability; random early migration; request migration; service failure rate; service load; simulation results; static load balance; video copy allocation algorithm; video-on-demand server system design; Computational modeling; Computer networks; Costs; File servers; Matrix decomposition; Multimedia computing; Network servers; Processor scheduling; Random media; Streaming media;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1206055
