Truncated pyramid peer-to-peer architecture with vertical tunneling model

Authors:
Zhonghong Ou;Jiehan Zhou;Erkki Harjula;Mika Ylianttila
Affiliations:
Department of Electrical and Information Engineering, Information Processing Laboratory, University of Oulu, Oulu, Finland and PCN&CAD Center, Department of Electronics Engineering, Beijing Un ...;Department of Electrical and Information Engineering, Information Processing Laboratory, University of Oulu, Oulu, Finland;Department of Electrical and Information Engineering, Information Processing Laboratory, University of Oulu, Oulu, Finland;Department of Electrical and Information Engineering, Information Processing Laboratory, University of Oulu, Oulu, Finland
Venue:
CCNC'09 Proceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference
Year:
2009

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Abstract

Peer-to-Peer (P2P) technologies have many advantages over traditional client/server technologies, including cost-effectiveness, scalability and robustness, due to their decentralized network structure. However, the performance has traditionally been an issue in P2P systems. Especially the higher lookup latencies, when compared with the traditional client/server systems, have been the bottleneck in many P2P systems. In this paper, we propose a truncated pyramid P2P architecture together with an enhanced model, Vertical Tunneling Model (VTM) for improving the lookup performance. The proposed architecture is built on Peer-to-Peer SIP (P2PSIP) network. VTM builds up vertical tunnels between the upper and lower sub-overlays to speed up the service lookup and decrease the session setup delay. Based on the performance analysis and results, it is shown that VTM has better performance compared with the existing systems in average lookup hops, which is about 1/3 of that of the existing systems, the predominance is more evident as the network scale increases.