中文摘要：

在非结构化overlay中,由于底层物理网络和overlay的拓扑失配问题,产生了大量冗余网络负载。为了降低负载,提出了基于位置信息的方法动态构造overlay。通过分布部署用于维护已加入网络的节点信息的info-Node,在不引入较大冗余网络负载的情况下,能够较好地解决拓扑失配问题。实验表明,基于网络测量的方法能显著降低网络负载和查询响应时间。

英文摘要：

In unstructured overlay, a large amount of redundant network traffic is generated because the problem of topology mismatching between physical network and overlay network. In order to alleviate the effect of topology mismatching, this paper proposed a method about unstructured overlay construction method based on location information. With disposing the info-Nodes, which maintained information of peers joined network, the topology mismatching problem was handled effectively without caused a large volume of redundant traffic. The simulation shows the proposed method can reduce the network traffic and query response time effectively.