Efficient Multimedia Distribution Architecture Using Anycast

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Efficient Multimedia Distribution Architecture Using Anycast
出版類型SCI(Sciences Citation Index)
AuthorsHsu-Yang Kung, 龔旭陽, Chung-Ming Huang 黃崇明, Hao-Hsiang Ku 顧皓翔, & Ching-Yu Lin 林靖祐
出版日期2007 / 1
其他編號NSC 95-2221-E-020-034-MY2

This study proposes the anycast-based multimedia distribution architectures with application-level context-aware capability to specify
the most suitable server for various application domains. The following three architectures, namely the identical, heterogeneous, and
semi-heterogeneous candidate architectures, are specified for different application purposes. (i) The identical candidate architecture, in
which multiple servers provide clients with the same contents, is highly reliable and suitable for real-time streaming applications. (ii)
The heterogeneous candidate architecture, in which different servers provide clients with different contents, provides better service diversity
than the identical candidate architecture, and is suitable for non-sequential content service. (iii) The semi-heterogeneous candidate
architecture, comprising one main server and multiple proxy servers, in which the main server stores the completed contents and proxy
servers store some portions of information sessions, has the best system performance, and works well under high network traffic loads.
To obtain quick and smooth multimedia distribution, the server selection criteria should consider not only the nearest server, but also the
network traffic loads and the popularity of requested content, i.e., context-aware considerations. The proposed architectures based on the
characteristics of IPv6 anycast and context-aware operations attempt to find the most suitable server/proxy. Finally, the system performance
of each of the three proposed architectures is analyzed and evaluated, and compared with the non-anycast architecture. Simulation
results also indicate that the semi-heterogeneous architecture is adaptive in face of changing conditions.

期刊名稱Computer Communications
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