Architecture of Multimedia Proxy Caching over the Internet

• 作 者: 潘浩 潘天泉 宋瀚涛 王大震
• 机 构: School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China,
• 出 处: Journal of Beijing Institute of Technology(English Edition)
• 发表日期: 2004年04期
• 关键词: streaming media proxy caching quality of service replacement algorithm

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.

Streaming media data have strict delay and loss requirements, which can not 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 the characteristics of streaming media data, the concept of weighed popularity is given to enhance the (exactness) of the replacement algorithm.