The Improvement of the Backoff Window Algorithm Based on the Game Theory in Wireless Sensor Network

In this paper, on the base of comprehensive consideration of game theory and the IEEE 802.11 DCF Distributed Coordination Function, for the characteristics of the wireless sensor network, we make the channel competitive process between nodes molded into incompletely information dynamic game. Then improve DCF by the Nash equilibrium game strategy. The simulation results show that the proposed model and strategy can obtain higher efficiency than the 802.11 DCF and improve many performances of the WSN.