Why does it pay to be selfish in a MANET?

  • Authors:
  • Younghwan Yoo;Dharma P. Agrawal

  • Affiliations:
  • Cincinnati Univ., OH;-

  • Venue:
  • IEEE Wireless Communications
  • Year:
  • 2006

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Abstract

Routing protocols for a mobile ad hoc network have assumed that all mobile nodes voluntarily participate in forwarding others' packets. This was a reasonable assumption because all MNs in a MANET belonged to a single authority. In the near future, however, a MANET may consist of MNs that belong to many different organizations since numerous civilian applications are expected to crop up. In this situation, some MNs may run independently and purposely decide not to forward packets so as to save their own energy. This could potentially lead to network partitioning and corresponding performance degradation. To minimize such situations in MANETs, many studies have explored the use of both the carrot and the stick approaches by having reputation-based, credit-payment, and game theory schemes. This article summarizes existing schemes, identifies their relative advantages, and projects future directions