《计算机应用研究》|Application Research of Computers

一种基于虚拟P2SP的应用层混合组播模型

Hybrid application layer multicast model based on virtual P2SP

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作者 许建真,台德鑫,郭丽
机构 南京邮电大学 计算机学院,南京 210003
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文章编号 1001-3695(2011)01-0230-04
DOI 10.3969/j.issn.1001-3695.2011.01.064
摘要 为了提高应用层组播数据分发的效率,提出了一种基于虚拟P2SP(peer to server & peer)架构的应用层混合组播模型VPHM。该模型构建了一个四层的数据分发结构,从上至下为服务节点层、超级节点层、虚拟服务层和peer节点层。上三层组成组播域,保证了组播的广度,下两层组成VP2SP(virtual P2SP)域,确保了组播的深度。仿真实验结果表明,该模型具有较低的平均端到端时延和较小的控制开销,适用于高服务质量的大规模应用层组播应用环境。
关键词 应用层组播;混合组播;P2SP;数据分发
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本文URL http://www.arocmag.com/article/1001-3695(2011)01-0230-04.html
英文标题 Hybrid application layer multicast model based on virtual P2SP
作者英文名 XU Jian-zhen, TAI De-xin, GUO Li
机构英文名 College of Computer, Nanjing University of Posts & Telecommunications, Nanjing 210003, China
英文摘要 To improve the application layer multicast data distribution efficiency, this paper presented one kind of hybrid application layer multicast model based on the virtual P2SP(peer to server & peer)VPHM. The model created a four-layer data distribution structure. From top to bottom was the service node layer, super node layer, the virtual service layer, Peer node layer. The multicast domain including the top three layers was employed to ensure the breadth of multicast, while the VP2SP (virtual P2SP) domain including the lowest two layers was used to ensure the depth of the multicast. Simulation results show that the model reduces the control overhead and cuts down the average end to end delay, which is suitable to those large scale ALM applications with high quality of service guaranteed.
英文关键词 ALM; hybrid multicast; P2SP; data distribution
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