Abstract: To solve the problem of resource sharing efficiency in P2P networks, this paper presents a self-adaptive sharing policy of computing resource sharing probability. The policy is used to decide whether a resource can be shared. It considers some key issues about resource sharing in P2P networks, such as limited store memory space, interrupted or redundant download process. A local computing method is used to compute the resource sharing probability in single agent. Experimental results show that the policy can effective decrease redundant download process numbers of sharing resources.

Key words: P2P network, resource management, self-adaptive sharing

摘要： 针对P2P网络中资源共享交换效率问题，提出一种计算网络资源共享可能度的自适应策略，以决定节点对资源的共享抉择。该策略考虑了P2P网络中资源共享存在受限存储空间、下载中断和冗余下载等问题，以资源共享可能度作为资源共享抉择依据，提出资源共享可能度在单个代理的计算方法。实验结果证明自适应策略能够较好地避免资源的冗余下载，提高P2P网络资源共享效率。

关键词: P2P网络, 资源管理, 自适应共享

CLC Number: 

• TP393