An Incentive Protocol for Opportunistic Networks with Resources Constraint: An Incentive Protocol for Opportunistic Networks with Resources Constraint

Aiming at the selfishness of nodes in opportunistic networks and according to the characteristics of opportunistic networks,a bargaining based incentive protocol(BIP) is proposed in this paper.To stimulate selfish nodes to cooperate and solve the network performance degradation resulted from blind cooperation of nodes,BIP designs a money payment mode and prices messages ready to be sent with residual resources and virtual money of nodes and the attributes of messages considered.Through the analysis of game theory,once the deal is made,BIP could bind nodes to participate in the message forwarding process.Simulation results further demonstrate the effectiveness and the practicality of the proposed protocol.From the simulation,BIP can reduce the energy consumption and decrease the delivery delay and increase the delivery ratio.