Credit-based repeated game model applied in transfer decision of opportunistic network

To reduce the cheating behavior of the nodes in data transfer,the idea of credit-cooperation and repeated games were involved.For a node,every game was considered as a part of the repeated game in its lifecycle.If it did a cheating operation in a game,it would face the punishment with long time.And the profit gained from the cheating-operation would be counteracted mutually from the loss of punishment time.Moreover,usually the punishment was bigger than the profits in fact.Such method minimizes the probability of cheating that happens in the game theory and improves the success-ratio of data transmission.The result shows the method is helpful to improve the honesty and cooperation of the nodes in the game.