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Architecture of Multimedia Proxy Caching over the Internet
作者姓名:潘浩  潘天泉  宋瀚涛  王大震
作者单位:[1]SchoolofInformationScienceandTechnology,BeijingInstituteofTechnology,Beijing100081,China [2]DepartmentofArchitectureandEngineering,NorthChinaofInstituteofScienceandTechnology,Beijing101601,China
摘    要:Streaming media data have strict delay and loss requirements, which cannot be adequately supported by the current Internet. Proxy caching technology is introduced to alleviate the effect of the bottleneck bandwidth on the transporting quality. A new architecture of multimedia proxy caching is given to solve the problem of the traditional Web caching technology for the multimedia streaming. The mixed media management module and the resource management module are added to this architecture, the prefetching and replacement method is studied considering the characteristics of streaming media data, the concept of weighed popularity is given to enhance the exactness of the replacement algorithm.

关 键 词:因特网  流媒体  多媒体数据  代理服务器  高速缓冲存储器
收稿时间:7/3/2003 12:00:00 AM

Architecture of Multimedia Proxy Caching over the Internet
PAN Hao,PAN Tian-quan,SONG Han-tao and WANG Da-zhen.Architecture of Multimedia Proxy Caching over the Internet[J].Journal of Beijing Institute of Technology,2004,13(4):355-359.
Authors:PAN Hao  PAN Tian-quan  SONG Han-tao and WANG Da-zhen
Affiliation:1. School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China
2. Department of Architecture and Engineering, North China of Institute of Science and Technology, Beijing 101601, China
Abstract:Streaming media data have strict delay and loss requirements, which cannot be adequately supported by the current Internet. Proxy caching technology is introduced to alleviate the effect of the bottleneck bandwidth on the transporting quality. A new architecture of multimedia proxy caching is given to solve the problem of the traditional Web caching technology for the multimedia streaming. The mixed media management module and the resource management module are added to this architecture, the prefetching and replacement method is studied considering the characteristics of streaming media data, the concept of weighed popularity is given to enhance the exactness of the replacement algorithm.
Keywords:streaming media  proxy caching  quality of service  replacement algorithm
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