Study of Co-Operation among Selfish Neighbors in MANET under Evolutionary Game Theoretic Model

Trust among nodes in a self-organizing network such as mobile ad hoc networks presents a number of problems and paradoxes. This paper explores the emanation of trust with a simple, dynamic and distributed framework using evolutionary game theory. Strategic, non-cooperative game theory has been exploited to study the behavior of selfish nodes. An evolutionary stable strategy has been derived applying genetic algorithm. The proposed model demonstrates that it can also induce cooperation among selfish nodes, albeit without negotiations. The cooperation level goes high when every node follows the evolved strategy and the trust mechanism. The investigation on the results has shown that the ad hoc paradigm can be modeled using an approach that has been developed for game theory