基于网格的内容传输技术研究

RESEARCH ON THE GRID-BASED CONTENT TRANSMISSION TECHNOLOGY

用于网格环境下数字流媒体传输的内容分发网络(Content Delivery Networks,CDNs)技术的研究,目前在国内外都比较活跃,主要研究内容包括内容分布方式、覆盖网络架构、内容分发算法、协同环境下的数据传输技术、无中心且易扩展的目标定位和路由技术等。对目前国际上的主要研究成果进行了分析与比较,在此基础上,提出了一种实现上更为切实可行、速度上更快的网络传输架构,即基于网格的动态自适应内容传递模型。

The research on grid-based Content Delivery Networks technology for digital media stream transmission is a hot spot interiorly and overseas. Primary researches include content distribution model, overlay network framework, content delivery arithmetic, data transmission technology in Cooperative environments, scalable and decentralized object location, routing technology and so on. The current primary researches in the world are analyzed and compared. A new network transmission framework called grid-based dynamic and self-adaptive content, transmissiorl model is proposed, which is more effective in implementation and faster in speed.