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政大機構典藏 > 理學院 > 應用數學系 > 期刊論文 > Item 140.119/63001

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题名:	Optimal Services for Content Delivery based on Business Priority
作者:	陸行 Luh,Hsing Liang, Chih-Chin
贡献者:	應數系
关键词:	content delivery;resource reservation;optimization
日期:	2013
上传时间:	2013-12-26 10:04:52 (UTC+8)
摘要:	In a content-delivery system, connections are viewed as resources for sending files. However, the growing business needs of large-scale networks require an effective content-delivery service for transferring files. Since connections are sparse resources, prioritizing connections is essential for efficiently delivering urgent files and regular files based on various business priorities. This study presents a loss function as a performance index for a content-delivery service. The proposed loss function was applied to a sample content-delivery system to derive the average number of regular files in the retry group, the probability of failure to transfer a regular file in the first attempt, and the probability of failure to transmit urgent files. Additionally, the loss was associated with the decreased number of reserve connections under regular hours and peak hours. The experimental results show that the proposed model finds the optimal number of reserve connections for sending high- and low-priority files, and a manager can increase the service rate to ensure that losses are tolerable when delivering urgent files. Finally, the relative probabilities of blocked urgent files and blocked regular files are used as an indicator of efficiency in reserving connections.
關聯:	Journal of the Chinese Institute of Engineers,36(4),422-440
数据类型:	article
DOI 連結:	http://dx.doi.org/10.1080/02533839.2012.731885
DOI:	10.1080/02533839.2012.731885
显示于类别:	[應用數學系] 期刊論文

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