Game-Theoretic Admission Control in Heterogeneous Wireless Networks

In this paper, the call admission control in wireless heterogeneous network is formulated as an extensive game with perfect information, which is solved by backward induction. Simulation results prove that this game-based scheme outperforms opportunistic one in terms of smaller dropping probability of handover connections and blocking probability of new connections in the WLAN area. In addition, the parameters of the system are flexible to adjust the priority of handover connections to new connections to protect existing connections, and achieve a balance between bandwidth utilization and QoS.