Hierarchical Storage Management in a Distributed VOD System
IEEE MultiMedia
Design and implementation of a distributed content management system
NOSSDAV '03 Proceedings of the 13th international workshop on Network and operating systems support for digital audio and video
Storage Allocation in Unreliable Peer-to-Peer Systems
DSN '06 Proceedings of the International Conference on Dependable Systems and Networks
From content distribution networks to content networks - issues and challenges
Computer Communications
An IPTV service delivery model using novel virtual network topology
Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication
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The least-cost content network, which takes the storage and bandwidth costs into account, is designed. The proposed content network is composed of several peer service areas, and the video servers are classified into two types: Type 1 and Type 2. Type 1 video servers only store the contents with higher hit rates, while Type 2 video servers store the other contents with lower hit rates. The number of each type of video servers and the storage allocation of contents are determined by the hit rate distribution. The allocation strategy aims at minimizing the cost of the proposed content network. Numerical results show that the proposed allocation scheme can save a large percentage of storage space and achieve the least cost for the content network. Thus, we believe that implementing the proposed allocation algorithm is of benefit to the content network operators for reducing the operating expenses.