基于节点性能的分层组播模型  

A Hierarchical Multicast Architecture Based On Node Performance

作　　者：王雷[1] 文泽鹏[1] 

机构地区：[1]中国科学技术大学自动化系

出　　处：《电子技术（上海）》2012年第10期14-18,共5页Electronic Technology

摘　　要：随着移动互联网的快速发展以及各种不同性能的移动终端的普及,基于传统的Internet网络设计的应用层组播模型不再适用于新的移动互联网环境。通过对现有的分层分簇组播模型Nice和Zigzag的分析,本文对Zigzag模型进行了改进,提出了一种基于节点性能的分层分簇组播模型,并对组播结构的调整和优化进行了描述,最后通过仿真实验与Nice和Zigzag在平均时延、平均链路延伸度和平均链路压力三个方面进行了对比,证明了组播模型的有效性。With the rapid development of mobile Internet and the prevalence of mobile terminals with various performances, the multicast model of application layer which is designed for traditional Internet is no longer suitable for the current environment of mobile Internet. Through the analysis of existing hierarchical and clustering multicast models, Nice and Zigzag, this paper improves the Zigzag model, proposes a node performance-based hierarchical and clustering model, and describes the adjustment and optimization of the multicast structure. The simulation experiment proves the validity of the proposed multicast model by the comparison between Nice with Zigzag on three aspects - average delay, average link extension, and average link stress.

关 键 词：移动互联网 应用层组播 组播模型 ZIGZAG 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]