A Study on Constructing Virtual Overlay Networks Being Aware of Underlying Physical Networks

提出了一种基于节点距离度量的分层分布式哈希表构建方法。层次结构由一种聚类方法确定，该方法根据一些距离度量对Internet上的节点进行分类，如RTT(往返时间)或节点之间的跳数。该方法利用Internet上的通信局部性，减少了覆盖网络上节点之间的通信开销。

This study proposes a method to construct a hierarchical distributed hash table based on node distance metrics. The hierarchy is determined by a clustering method that classifies nodes on the Internet by some distance metric like RTT (Round Trip Time) or hop counts between nodes. The proposed method reduces communication overhead between nodes on an overlay network making use of communication locality on the Internet.