Traffic control for communications using multiple IEEE802.11 wireless interfaces

The diversification of wireless communication usage has been proceeding rapidly with the diffusion of cellular phones and WiFi. In the emerging wireless communication environments, various wireless systems coexist and various applications can be simultaneously used. On the other hand, there is increasing concern that the growing use of wireless systems will exhaust the finite wireless resources. Cognitive radio has been proposed as a solution to this problem. Cognitive radio aims to optimize the utilization of wireless resources by combining communications among multiple wireless interfaces. In this paper, we propose a traffic control for communications using multiple IEEE802.11 wireless interfaces. The proposed method optimizes the utilization efficiency of an IEEE802.11 wireless cell based on cell cost, which shows the load of the cell and then improves delay and throughput in the network.