一种新的基于移动代理的P2P模型及资源定位算法研究

如何在P2P网络中进行资源的搜索定位是相关研究中最为关键的问题。但是目前的资源定位方法都存在不同的问题，尤其表现在占用过多的网络带宽、资源定位时延过长，peer节点的随意加入离开导致资源定位的稳定性不高等。针对上述问题，提出了一种基于移动代理的两层P2P模型。在该模型下，首先设计了一个确定Query Agent数量及路线的算法；然后将这些Query Agent派发出去，再根据资源定位算法进行资源定位。最后，对算法进行了性能分析。分析表明，算法在资源定位效率、带宽节约、鲁棒性等方面均优于一般的资源定位算法。

A Novel P2P Model and Resource Orientation Algorithms Based on Mobile-Agent

How to perform resource orientation in Peer-to-Peer network is a key technology, But the existing resource orientation methods have various of disadvantages, such as using high bandwidth, long latency, low stabilization since the peers can join or leave P2P network freely. This paper proposed a norel resource orientation algorithm based on Mobile-Agent in a layered P2P model, which can solve above problems. Based on the model, we designed a algorithm to determine the number of query mobile agent and migrating route. With the help of query agent, the location of resources are obtained. The analysis of algorithm indicates our algorithms have better behaviors than common related algorithm on efficiency, saving of bandwidth, robustness and so on.