Optimal file placement in VOD system using genetic algorithm

被引:24
作者
Tang, KS [1 ]
Ko, KT [1 ]
Chan, S [1 ]
Wong, EWM [1 ]
机构
[1] City Univ Hong Kong, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China
关键词
blocking probability; file placement; genetic algorithm; video on demand;
D O I
10.1109/41.954552
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Advances in computing and networking are generating a significant demand for video-on-demand (VOD) applications. In this paper, the condition for minimum blocking probability of a VOD system is derived. The optimal load-sharing requirement in such a system is found so that the minimum blocking probability is achieved. A combination of genetic algorithm and modified bin-packing algorithm is then developed for the multimedia file placement exercise. It is demonstrated that a specified blocking probability can be achieved while the capacity usage is minimized simultaneously.
引用
收藏
页码:891 / 897
页数:7
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