Research of Node Incentive Strategy in Selfish Opportunistic Network

Nodes in selfish opportunistic network are selfish when forwarding messages due to limited resources. To solve the problem, this paper proposes a kind of node incentive strategy based on the overdraft virtual currency mechanism NISOVCM. The strategy designs an overdraft virtual currency mechanism, which solving the problem of virtual currency issue by using the capability of forwarding message of a node as virtual overdraft guarantee. In the trading mechanism of the strategy, the resource status and wealth status are public. When the message trading cannot be completed once, there will be a second bargaining based on the resources status and wealth status to suppress the false quotation offer between two sides. The result of simulation shows that the proposed strategy is effective and can suppress the false quotation.