A secure credit-based cooperation stimulating mechanism for MANETs using hash chains

  • Authors:
  • Hamed Janzadeh;Kaveh Fayazbakhsh;Mehdi Dehghan;Mehran S. Fallah

  • Affiliations:
  • Computer Engineering Department, Amirkabir University of Technology, 424 Hafez Ave., Tehran 15914, Iran;Computer Engineering Department, Amirkabir University of Technology, 424 Hafez Ave., Tehran 15914, Iran;Computer Engineering Department, Amirkabir University of Technology, 424 Hafez Ave., Tehran 15914, Iran;Computer Engineering Department, Amirkabir University of Technology, 424 Hafez Ave., Tehran 15914, Iran

  • Venue:
  • Future Generation Computer Systems
  • Year:
  • 2009

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Abstract

One of the most challenging problems in self-organized mobile ad hoc networks (MANETs), which consist of autonomous and self-interested nodes, is to stimulate the nodes to cooperate in routing and packet forwarding. In this paper, we propose a novel credit-based cooperation mechanism that utilizes hash chains on messages to defend against cheating by the nodes. We show that it imposes a low workload on the nodes in comparison with the mechanisms that deploy digital signature schemes. Moreover, through a game-theoretic analysis, it is shown that any level of cooperation by a node will be attainable if the mechanism makes appropriate payments.