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A Distributed Trust Model Based on Reputation Management of Peers for P2P VoD Services
  • KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

A Distributed Trust Model Based on Reputation Management of Peers for P2P VoD Services

Vol. 6, No. 9, September 25, 2012
10.3837/tiis.2012.09.018, Download Paper (Free):

Abstract

Peer-to-Peer (P2P) networks are becoming more and more popular in video content delivery services, such as Video on Demand (VoD). Scalability feature of P2P allows a higher number of simultaneous users at a given server load and bandwidth to use stream service. However, the quality of service (QoS) in these networks is difficult to be guaranteed because of the free-riding problem that nodes download the recourses while never uploading recourses, which degrades the performance of P2P VoD networks. In this paper, a distributed trust model is designed to reduce node’s free-riding phenomenon in P2P VoD networks. In this model, the P2P network is abstracted to be a super node hierarchical structure to monitor the reputation of nodes. In order to calculate the reputation of nodes, the Hidden Markov Model (HMM) is introduced in this paper. Besides, a distinction algorithm is proposed to distinguish the free-riders and malicious nodes. The free-riders are the nodes which have a low frequency to free-ride. And the malicious nodes have a high frequency to free-ride. The distinction algorithm takes different measures to response to the request of these two kinds of free-riders. The simulation results demonstrate that this proposed trust model can improve QoS effectively in P2P VoD networks.


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Cite this article

[IEEE Style]
G. Huang, M. Hu, Y. Zhou, P. Liu and Y. Zhang, "A Distributed Trust Model Based on Reputation Management of Peers for P2P VoD Services," KSII Transactions on Internet and Information Systems, vol. 6, no. 9, pp. 2285-2301, 2012. DOI: 10.3837/tiis.2012.09.018.

[ACM Style]
Guimin Huang, Min Hu, Ya Zhou, Pingshan Liu, and Yanchun Zhang. 2012. A Distributed Trust Model Based on Reputation Management of Peers for P2P VoD Services. KSII Transactions on Internet and Information Systems, 6, 9, (2012), 2285-2301. DOI: 10.3837/tiis.2012.09.018.