政大學術集成


Please use this identifier to cite or link to this item: https://ah.nccu.edu.tw/handle/140.119/63001


Title: Optimal Services for Content Delivery based on Business Priority
Authors: 陸行
Luh,Hsing
Liang, Chih-Chin
Contributors: 應數系
Keywords: content delivery;resource reservation;optimization
Date: 2013
Issue Date: 2013-12-26 10:04:52 (UTC+8)
Abstract: 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.
Relation: Journal of the Chinese Institute of Engineers,36(4),422-440
Data Type: article
DOI link: http://dx.doi.org/10.1080/02533839.2012.731885
Appears in Collections:[Department of Mathematical Sciences] Periodical Articles

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