Eur. Phys. J. B (2012) 85: 63
https://doi.org/10.1140/epjb/e2012-20801-4

Regular Article

Improving resource utilization in hierarchy network by optimizing topological structure

¹ Information Security Center, Beijing University of Posts and Telecommunications, P.O. Box 145, Beijing 100876, P.R. China
² Research Center on Fictitious Economy and Data Science, Chinese Academy of Sciences, Beijing 100190, P.R. China
³ National Engineering Laboratory for Disaster Backup and Recovery, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China

^a e-mail: penghaipeng2003@yahoo.com.cn

Received: 30 September 2011
Received in final form: 19 December 2011
Published online: 13 February 2012

Abstract

We study the performance of peer-to-peer (P2P) network built on the top of hierarchy topological structure of local area networks (LAN). We find that the topological structure of the underlying physical network has significant impacts on the resource utilization of the P2P overlay network. The larger size of the physical network is, the lower resource utilization of the overlay network is. Through optimizing the topological structure of physical network, we propose two novel schemes to improve the resource utilization. The experimental results show that in any case the resource utilization of P2P network can always achieve 100% by these two schemes.