Dynamically Optimize Multicast Tree Structure

摘要：

Live-streaming applications based on overlay multicast have become very popular recently. There have been many studies on optimizing the overlay construction and improving multicast performance.Most of these studies focused on building period of overlay network or multicast tree. It is not flexible in the heterogeneous and variable Internet environment.In this paper, we present DOMT, an overlay multicast protocol in which the multicast tree can be optimized dynamically. In DOMT, high capability peers get better position in the tree and more peers get near peers as their parents. Most of the previous protocols didnt consider dynamic optimization because its bad impact to stability. In DOMT, we design some mechanisms to avoid the bad impact. The experimental results show that the optimization can decrease the height of multicast tree and shorten the average source-to-end delay. It also proves that the bad impact made by the optimization is acceptable.

关键词： Live Streaming Overlay Multicast Dynamic Optimization Gossip

作者: Ming Zeng Hongliang Yu Feng Yang Weimin Zheng

作者单位: Department of Computer Science, Tsinghua University, Beijing China

会议类型: 国际会议

会议名称: 第五届网格与协同计算国际会议(The Fifth International Conference on Grid and Cooperative Computing GCC 2006)

会议地点: 长沙

会议语种:英文

页码: 143-150

在线出版日期: 2006-10-21（万方平台首次上网日期，不代表论文的发表时间）