A comparative study of cooperative and non-cooperative game theory in network selection

Fifth generation wireless network is consisting of heterogeneous networks to provide end to end mobility and service to mobile users. So in heterogeneous wireless network, selection of the optimal network becomes an important task. In recent years, network selection has been mostly studied by using different mathematical methods. But in this paper, the network selection problem is modelled as the evolutionary and bankruptcy game in heterogeneous wireless networks. Analytical Hierarchy Process (AHP) is used to decide the weights of different attributes according to service requirement and evolutionary and bankruptcy game theory is used for ranking of the networks. Evolutionary game is used as the non-cooperative game for studying the behavior of selfish users and bankruptcy game is used as the cooperative game for achieving mutual advantage. The comparison between the cooperative game and non-cooperative game is studied in case of streaming, conversational and background traffic class. Simulation results show that different networks are selected for different traffic class according to user preference.