2012 Volume 9 Issue 4 Pages 234-239
Seamless mobility support in a heterogeneous roaming environment is one of several challenging issues for next-generation wireless network, and handoff decision is an important and intelligent part of seamless handoff process. In this paper, an improved game theory-based vertical handoff decision algorithm is presented. The proposed algorithm formulates the relationship between mobile nodes and heterogeneous access networks as a special consumer goods market model, and formulates the relationship among candidate access networks as cooperative game process. The simulation experimental results show that the proposed network selection algorithm is able to achieve the load balancing well, and make the networks obtain larger payoff.