International Conference on Networking and Services (ICNS '07)
An Adaptive Approach to Enhance the Performance of Content-Addressable Networks
Athens, Greece
June 19-June 25
ISBN: 0-7695-2858-9
Distributed Hash Table (DHT) algorithms structure peer-to-peer networks to provide nodes with fast and scalable lookups. In recent DHT solutions, such as Chord and Kademlia, the contacts of a node in the overlay network are determined so as to keep up with a lookup cost of O(logN) in a network of N nodes. As opposed to these, one of the first DHT solutions, called Content Addressable Network (CAN), has the drawback of limiting the lookup cost only in O(dN1d ) where d is the number of dimensions in the coordinate space, a fixed network parameter. However, CAN has several merits to exploit. Thus, in this paper we present a novel algorithm for CAN, called Long-Range CAN (LRCAN) which is able to eliminate the rigidity of the original system, and provides a more scalable and resilient solution, not only compared to the original version, but to the currently best performing DHTs that we already mentioned.