期刊论文

中文

计算机工程与应用

1002-8331

2010

46

28

1-5

10.3778/j.issn.1002-8331.2010.28.001

基金项目：国家自然科学基金（the National Natural Science Foundation of China under Grant No.70671051） 湖南省教育厅资助科研项目（the Scientific Research Fund of Education Department of Hunan Province under Grant No.08C756）.

本校为其他机构

设计了一种半结构化的P2P存储系统结构,其有效地减少了结点在物理网络和覆盖网络中的位置不匹配问题。半结构化P2P覆盖网络综合了结构化和非结构化的特点,具有很好的扩展性和可管理性。所提出的半结构化P2P存储系统,通过检测信息的响应时间对结点分组,结合结点的在线率和结点的响应时间计算每个结点的信誉值,对组内每个结点按照信誉值大小排队,并以此为选择超级结点的依据。仿真实验表明,设计的系统结构降低每个结点加入和退出时发送的消息数量,减少了信息检索延迟,取得了较好的用户满意度。

This paper designs a semi-structured P2P storage system architecture,which effectively reduces the problem of overlay network not matching the location of physical network.Semi-structured P2P overlay network which combines the structured and unstructured characteristics has good scalability and manageability.This paper assigns group according to the response time of detection message and selects super node according to the reputation value which is computed through combining on-line rate and response time of node.The simulation results show that the designed structure reduces join and exit num...