Abstract:

The development and evolution of wireless communication technology results in that a variety of wide area cellular networks have coexisted and overlapped with a large number of Wireless Local Area Networks (WLANs).In the hot region,when a large number of densely distributed users simultaneously initiate the same kind of service requests,a multi-user network selection algorithm based on evolutionary game is proposed.The utility function is designed according to the number of users in the selection network,and the replication dynamic equation of evolutionary game is given.Simulation results show that the proposed algorithm can achieve evolutionary equilibrium quickly and have higher average user benefit than the RSSI algorithm,the user distribution of the access network is more balanced,and the network resources can be reasonably used.

Key words: coexistence of heterogeneous networks, network selection, evolutionary game