Information lookup systems using Distributed Hash Ta-ble (DHT) have been actively studied. In the Chord DHT, nodes are configured as a ring structure and lookup re-quests are forwarded along with the ring. In order to get information efficiently, response time should be short. However, since Chord overlay network is constructed without considering the real network, the efficient lookup cannot be done. In this paper, we propose a method to reduce the response time by the rearrangement and re-placement of the node ID of the Chord. From the simulation results, it is shown that the response time of the pro-posed method reduced.
['Yuta Shimano', 'Fumiaki Sato']
Reconfiguration of Chord Ring Based on Communication Delay for Lookup Performance Improvement