摘要
针对大型分层视频组播层次化自适应体系HALVM中层次化代理的位置和功能如何动态配置和管理的核心问题,本文在研究和分析了层次化代理的逻辑构成和视频组播原始拓扑结构特点的基础上,利用共享丢失模型,提出了一个代理动态自组织协议SL-SOAP。该协议首次将多视频组播会话自组织代理从逻辑上分成多个进程,提出了多个视频组播会话自组织代理中多个进程的优化定位方法,并通过应用证实了该协议的有效性。
The central topic of HALVM, a Hierarchical Adaptive Architecture for Large-scale Layered Video Multicast, is how to configure and manage hierarchical agents dynamically. Through analyzing the logical components of hierarchical agents and the original topology of video multicast tree, this paper proposes a novel agent protocol (SL- SOAP)which based on the shared loss Model. In SL-SOAP, we first decompose a self-organized agent into several logical processes, and propose an optimal method to deposit the processes of multiple adaptive video multicast sessions in multicast network nodes. SL-SOAP has been applied to two video multicast applications and proved to be an effective scheme.
出处
《计算机科学》
CSCD
北大核心
2007年第6期24-29,共6页
Computer Science
关键词
大型分层视频组播
自组织代理
共享丢失
Large-scale layered video multicast, Self-organized agent, Shared loss