Incitement rational nodes to cooperation in wireless networks based on IPD game

In traditional wireless networks, such as mobile ad hoc networks and sensor networks, most works are done on the basis of cooperation between nodes. In such networks, each node acts both as a host node and a network infrastructure. Because, on one hand it sends its own data, and on the other hand it forwards other node´s packets. In this paper, instead of traditional network, we consider a network of rational nodes, that is, in this network each node itself can decide whether to cooperate with its neighbors or not. Since, for each node, directing other node´s packets cause to spend cost, logical nodes are reluctant to drive data packets for other nodes. Thus, we have decided to model and analyze the collaboration among nodes by using game theory. We have also tried to represent a strategy in which nodes are encouraged to cooperate with each other.