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在P2P流媒体系统中,一个高效实用的资源索引及传输机制能很好地均衡系统的负载,加强系统的稳定性,并减少节点的搜索时延。在实际的应用中,不同服务能力的节点对于整个网络的不同贡献应该得到不同的激励。本文提出一种具有商业激励的P2P流媒体系统资源索引及传输机制。文章在对节点进行空间划分的基础上,对现有的节点良好度评价标准,节点排序算法做出了改进,并在相应的商业激励值下进行数据的传输。该机制加快了资源的搜索速度,均衡了系统负载并提高了用户上传的积极性,对于现有P2P流媒体系统的改进具有积极的意义。
In P2P streaming media system, an efficient and practical resource indexing and transmission mechanism can well balance the load of the system, enhance the stability of the system and reduce the search delay of the nodes. In practical application, the different contributions of nodes with different service capabilities to the entire network should be given different incentives. This paper presents a commercial incentive P2P streaming media system resource index and transmission mechanism. Based on the spatial division of the nodes, the article improves the current nodes’ goodness evaluation criteria and the node ranking algorithm and transmits the data under the corresponding commercial incentive values. This mechanism speeds up the search speed of resources, balances the system load and improves the enthusiasm of users’ upload, which is of positive significance to the improvement of the existing P2P streaming media system.