Chord: A scalable peer-to-peer lookup service for internet applications
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
Pastry: Scalable, Decentralized Object Location, and Routing for Large-Scale Peer-to-Peer Systems
Middleware '01 Proceedings of the IFIP/ACM International Conference on Distributed Systems Platforms Heidelberg
Making gnutella-like P2P systems scalable
Proceedings of the 2003 conference on Applications, technologies, architectures, and protocols for computer communications
Scalable Supernode Selection in Peer-to-Peer Overlay Networks
HOT-P2P '05 Proceedings of the Second International Workshop on Hot Topics in Peer-to-Peer Systems
S-Chord: hybrid topology makes chord efficient
ICN'05 Proceedings of the 4th international conference on Networking - Volume Part II
A policy for electing super-nodes in unstructured p2p networks
AP2PC'04 Proceedings of the Third international conference on Agents and Peer-to-Peer Computing
BiChord: an improved approach for lookup routing in chord
ADBIS'05 Proceedings of the 9th East European conference on Advances in Databases and Information Systems
CR-Chord: Improving lookup availability in the presence of malicious DHT nodes
Computer Networks: The International Journal of Computer and Telecommunications Networking
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In peer to peer networks, the overlay topology connecting peers is an important component in addition to peer and data organization and search. In fact, topological characteristics have an important impact on the efficiency of search on such networks. In this paper, we address this issue for Chord based P2P systems. Based on the Barabasi Albert (BA) model, we propose to extend the topology of Chord to a scale free graph DHT, named PL-Chord, to provide a non hierarchical super-peer based lookup algorithm with an efficient search support. Through several simulation experiments, we found that PL-DHT could construct an overlay network that extends the search region and provides higher reachability at a very little additional cost.