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A Super Peer-based Reputation Scheme for Mobile Computing Environments

Xu Wu
Department of Computer Science, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
Abstract—Trust management is fundamental to identify malicious, selfish and compromised nodes which have been authenticated. Many trust management mechanisms are proposed to provide effective security solution for wire and wireless networks, even some of them have become one of the most known in this field. However mobility, uncertainty and heterogeneity of mobile computing environments make trust management much more complicated, so they are inadequate in the mobile computing environments in which the clients are mobile, volatile and undetermined. In the paper, we presents a super peer-based reputation scheme(SPRS), where peers are classified into two groups, super peers and mobile peers and a super peer has zero or more mobile peers. We design two ways of selecting super peers, greedy method and maximal independent set method. The proposed scheme establishes a trusted mobile environment for mobile computing environments. It effectively avoids the communication overhead in global trust computation because each super peer maintains the appropriate reputation information of its mobile peers. The simulation results show that SPRS is highly robust and scalable in the dynamic environment of mobile networks.

Index Terms—Trust, mobile computing, peer to peer

Cite: Xu Wu, "A Super Peer-based Reputation Scheme for Mobile Computing Environments," Journal of Communications, vol. 9, no. 6, pp. 475-482, 2014. Doi: 10.12720/jcm.9.6.475-482
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