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Barter-based cooperation in delay-tolerant personal wireless networks

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4 Author(s)
Buttyan, L. ; Laboratory of Cryptography and Systems Security (CrySyS), Budapest University of Technology and Economics, Hungary, ; Dôra, L. ; Felegyhazi, Mark ; Vajda, Istvan

In this paper, we consider the application of delay-tolerant networks to personal wireless communications. In these networks, selfish nodes can exploit the services provided by other nodes by downloading messages that interest them, but refusing to store and distribute messages for the benefit of other nodes. We propose a mechanism to discourage selfish behavior based on the principles of barter. We develop a game-theoretic model in which we show that the proposed approach indeed stimulates cooperation of the nodes. In addition, the results show that the individually most beneficial behavior leads to the social optimum of the system.

Published in:

World of Wireless, Mobile and Multimedia Networks, 2007. WoWMoM 2007. IEEE International Symposium on a

Date of Conference:

18-21 June 2007