摘要
对基于社区结构的P2P流媒体系统进行了建模研究,总结提出了k-n模型和k-n-t模型两种社区结构模型,并对这两种模型的小世界网络特征作了理论分析和比较。结果表明,k-n模型社区结构比k-n-t模型具有较高的聚集系数,而k-n-t模型社区结构在聚集系数和平均路长两方面取得了更好的折衷。
A modeling study of community structure based on P2P streaming systems was studied.Two types of community structure models,named k-n model and k-n-t model,were presented,of which the small world network characteristics are theoretically analyzed and compared.Numerical result shows that the community structure of k-n model has a higher clustering coefficient than that of k-n-t model,while the community structure k-n-t model achieves a better tradeoff between clustering coefficient and average path length.
出处
《山东大学学报（理学版）》
CAS
CSCD
北大核心
2012年第5期84-88,共5页
Journal of Shandong University(Natural Science)
基金
国家自然科学基金资助项目(61170211)
山东大学自主创新基金项目(2012TS195)
关键词
对等网络
流媒体
k-n模型
k-n-t模型
社区结构
小世界网络
聚集系数
peer-to-peer network
media streaming
k-n model
k-n-t model
community structure
small world network
clustering coefficient
