P2 P服务质量和P2 P网络拓扑结构有着密切的关系。文中所提出的基于信任的P2 P网络动态拓扑适应模型，每个节点的连接信任值根据其邻居节点的服务质量和连接信任来计算，并概率地选取连接信任值高的节点作为邻居节点，不断更新邻居列表。实验证明该模型能有效提高网络的成功下载率，并通过理论分析进一步验证了该模型对网络中恶意节点行为的抗攻击能力。运用动态构建P2 P网络拓扑的方法成功地提高了网络的可用性。%P2P quality of service has a close relationship with P2P network topology. Develop a trust based network dynamic topology ad-aptation model for supporting dynamic trust relationship. Each peer can compute connection trust according to quality of service and con-nection trust of neighbor,and choose high connection trust asneighbor probability,and update the neighbor list. Experiments show that the model can increase the network successful download ratio efficiently. Through further theoretical analysis of the model,verify that the model is resistant against the malicious activities in the network. Improve network usability successfully using P2P dynamic topology con-struction method.
展开▼
