Title: A dynamic layer management scheme for a superpeer ring with a loosely-consistent DHT

Authors: Saeyoung Han, Sungyong Park

Addresses: Department of Computer Science and Engineering, Sogang University, Seoul, Korea. ' Department of Computer Science and Engineering, Sogang University, Seoul, Korea

Abstract: In this paper we propose a Dynamic Layer Management (DLM) scheme for a self-organising superpeer ring with a loosely-consistent DHT. Each peer estimates the global capacity based on the information collected by mobile agents and autonomously decides whether it can be a superpeer or not. The proposed scheme also changes the size of the superpeer ring adaptively according to the size of the network, and maintains an appropriate number of superpeers in dynamic peer-to-peer environments. The benchmarking results show that our scheme outperforms the fixed superpeer system in terms of search latency at the expense of message overhead added for the DLM.

Keywords: peer-to-peer; P2P networks; self-organising superpeer ring; dynamic layer management; DLM; loosely-consistent DHT; distributed hash table; superpeer networks.

DOI: 10.1504/IJCNDS.2008.020262

International Journal of Communication Networks and Distributed Systems, 2008 Vol.1 No.2, pp.161 - 178

Published online: 10 Sep 2008 *

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